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T

Tushar 11 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Shares and Dividends

What is the difference between stock and share?

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Minita replied | 21 Nov

Stocks are fully paid shares consolidated to larger units whereas shares are single units of capital of a firm which may or may not be fully paidup

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Rachna replied | 21 Nov

"Stock" is a general term used to describe the ownership certificates of any company, in general, and "shares" refers to a the ownership certificates of a particular company. So, if investors say they own stocks, they are generally referring to their overall ownership in one or more companies.

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K

Kaushal 11 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Shares and Dividends

Find the dividend due at the end of a year on 250 shares of Rs 50 each, if the half yearly dividend is 4% of the value of the sharee?

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Megha replied | 19 Nov

Dividend to be paid at end of the year for 6 months is 250×50×4%= 500

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Megha replied | 19 Nov

Half yearly dividend is Rs. 500. Paid at the end for 12 months is Rs. 1000

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M

Manchala 11 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Shares and Dividends

A dividend of 9% was declared on Rs 100 shares selling at a certain price. If the rate of return is 7%, calculate the market value of the share?

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Soumajit Sur replied | 23 Nov

The Market Value of the Share is to be calculated this way [9/0.07].
That is Rs. 128.57 per share.

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P

Pratheema 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

Find the mean of first 15 natural numbers?

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A

Ashwini replied | 26 Nov

9

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Chandan replied | 1 day ago

Mean = sum of total numbers/ total number of numbers
= 120/15=8 Ans.

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G

Guru 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

If the mean of 10, 12, 18, 13, x, 17 is 15. Find the value of x?

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Abhijeet Kumar replied | 4 days ago

20

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Chandan replied | 1 day ago

Mean = Sum of total numbers/ total number of numbers
10+12+18+13+x+17/6=15
70+x=90
Hence, x=90-70=20 Ans.

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T

Taj 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

What is the average of the data: 4, 5, 6, 8, 10, 11, 12?

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Chandan replied | 2 days ago

Average= (Sum of total data)/no. of data
= (4+5+68+10+11+12)/7= 8 (Ans).

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R

Rawinder 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

The SI on a sum of money is 1/9 of the principle, and the number of years is equal to the rate % per annum. Find the rate %?

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Sarvajeet Kumar replied | 26 Nov

(10/3)%

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R

Rituraj 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

Ramesh invests Rs. 12800 for three years at the rate of 10% per annum compound interest. Find the sum due to Ramesh at the end of the first year?

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Sreedevi replied | 21 Nov

The amount at the end of Year I is 10% of the principle added to the principle itself. So it would be 12800+(10% of 12800)=14080

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V

Vijay 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

The cost of car, purchased 2 years ago, depreciates at the rate of 20% every year. If its present worth is Rs 315600, find its purchase value?

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A

Ashwini replied | 26 Nov

Rs. 493175.

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Answer

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S

Supriyo 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

The difference between simple interest and compound interest compounded annually on a certain sum of money for 2 years at 4% per annum is Rs 1. What is the sum of rupees?

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Ram Mohan replied | 18 Nov

If 'P' is the Principal Sum , then Compound Interest (CI) @4%, after 2 years is:
CI = P{ (1+4/100) (1+4/100) -1} =P { 1+16/10000 +2*4/100 -1} = P{16/10000+2*4/100}
Simple Interest SI, @ 4% after 2 years is:
SI = P*2*4/100
It is given that, CI - SI= Rs.1, Substituting the values of CI and SI in the above eqn, we get:
P{16/10000 + 2*4/100} - P*2*4/100 =1,...  more»
If 'P' is the Principal Sum , then Compound Interest (CI) @4%, after 2 years is:
CI = P{ (1+4/100) (1+4/100) -1} =P { 1+16/10000 +2*4/100 -1} = P{16/10000+2*4/100}
Simple Interest SI, @ 4% after 2 years is:
SI = P*2*4/100
It is given that, CI - SI= Rs.1, Substituting the values of CI and SI in the above eqn, we get:
P{16/10000 + 2*4/100} - P*2*4/100 =1, ==> P*16/10000 = 1, ==> P = 10000/16, ==> p= 625
Therefore, the principal Sum lent was, Rs.625/-
One Can use the Formula
P*(r/100)*(r/100) = d , where, 'P' is Principal Sum, 'r' is rate of interest for a prescribed period, and 'd' is the difference between CI and SI, for two such periods; can be used in this case. «less

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Suyash replied | 19 Nov

Given,
Compound Interest -Simple Interest = 1
P { 1+ ( 4/100) } ^ 2 - P - ( P×4×2 / 100 ) = 1
On solving,
P = 625

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Answer

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S

Srinu 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

What is the difference between the compound interest on Rs. 5000 for 1 year at the rate 4% per annum compounded yearly and half yearly?

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Shikha replied | 22 Nov

Compound interest = Amount +Principal. One and a half year can be calculated as 3 and half years.

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Answer

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G

Geeta 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

The compound interest on Rs 30000 at the 7% per annum is Rs 4347. What is the period (in years)?

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Ram Mohan replied | 21 Nov

The period is 2 years. Very simple solution
30000[ (1+7/100) power n] - 30000 = 4347 = = > 30000 [ (1+7/100) power n] = 34347 ==>
[ (1+7/100) power n] = 34347/30000 ==> [ (100+7)/100) power n] = [ (100+7)/100 ) power 2 ==> n=2

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Answer

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K

Kiran 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

What will be the compound interest on a sum of Rs. 25000 after 3 years at the rate of 12 p.a?

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Shikha replied | 23 Nov

Amount =[25000(1+12/100)3]
=[25000*28*28*28]/25*25*25
=Rs 35123.20
CI = Rs 35123.2+ Rs 25000= Rs 10,123.20.

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A

Apollo 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

Define compound interest?

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Shikha replied | 23 Nov

Compound interest is the interest to the principal sum i.e., Compound interest = Principal of last year + Amount
Amount = (1+r%) to the power n, number of years.

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Answer

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P

Preeti 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Compound Interest

If the simple interest on a sum of money for 2 years at rate 5% per annum is Rs. 50, What is the compound interest on the same rate and for the same time?

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Sarvajeet Kumar replied | 26 Nov

Rs. 51.25.

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Answer

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V

Vivekchettri 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Profit, Loss and Discount

What do you mean by marked price, list price, discount?

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Chandan replied | 22 Nov

Marked Price:
In big shops and departmental stores, every article is tagged with a card and its price is written on it. This is called the marked price of that article, abbreviated as MP.
For books, the printed price is the marked price.
List Price:
Items which are manufactured in a factory are marked with a price according to the list supplied by the factory,...  more»
Marked Price:
In big shops and departmental stores, every article is tagged with a card and its price is written on it. This is called the marked price of that article, abbreviated as MP.
For books, the printed price is the marked price.
List Price:
Items which are manufactured in a factory are marked with a price according to the list supplied by the factory, at which the retailer is supposed to sell them. This price is known as the list price of the article.
Discount:
In order to increase the sale or clear the old stock, sometimes the shopkeepers offer a certain percentage of rebate on the marked price. This rebate is known as discount. «less

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Answer

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P

Poonam 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Profit, Loss and Discount

What do you mean by successive discounts?

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Suyash replied | 19 Nov

If on a commodity, discount is given by more than one time , then it is called as successive discount.
Ex - 5% then 10%.

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Answer

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D

Disha 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Profit, Loss and Discount

A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?

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T Raghavender replied | 25 Nov

For 6 toffees 1 cost price to gain 20% profit he needs to sell 6 toffees for 1.2 rupee so selling price of each toffee is (1.2/6)=.2 rupee so for 1 rupee he sells( (5x0.2) =1) 5 choclates.

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Answer

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S

Shubham 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Profit, Loss and Discount

A man buys a cycle for Rs 1400 and sells it at a loss of 15%. What is the selling price of the cycle?

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Mahender replied | 23 Nov

Rs. 1190.

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Answer

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B

Bivash 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Profit, Loss and Discount

What is the relationship between profit and profit percentage?

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Shikha replied | 22 Nov

Profit%= profit/cp *100

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Answer

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I

Issac 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Expansions

Expand the given: [square of (x + 2y + 4z)]?

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Chandan replied | 22 Nov

(square of x) + 4(square of y) + 16(square of z) + 4xy + 16yz + 8xz

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Answer

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P

Priya 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Expansions

Factorise: 8(cube of a) + (cube of b) + 12 (square of a)(b) + 6(a)(square of b)?

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Mamata replied | 24 Nov

8a^3+b^3+12(a^2)b +6a(b^2)
= (2a)^3+(b^3)+3 x( (2a)^2) (b) + 3 x (2a) x (b^2)
= ((2a+b)^3).
Cube of (2a+b).

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Answer

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K

Krishna 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Expansions

Write the decimal expansion for: 63. 801?

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Shikha replied | 23 Nov

6*10+3*1+8/1+0/10+1/100.

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Mamata replied | 24 Nov

6x(10^1)+3x(10^0) + 8 x (10^(-1)) +0x(10^(-2))+1x(10^(-3)).

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Answer

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A

Ajit 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Expansions

Subtract: 2(cube of x) - (square of x) + 4x - 6 from (cube of x) + 5(square of x) - 4x + 6?

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Chandan replied | 22 Nov

(cube of x) + 5(square of x) - 4x + 6-[ 2(cube of x) - (square of x) + 4x - 6 from (cube of x) ] = - (cube of x) + 6(square of x) - 8x + 12

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Answer

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S

Sudha 09 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Expansions

Multiply: (ax + by) (5x + 6y)?

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Chandan replied | 22 Nov

5a(square of x) + 6axy + 5bxy + 6b(square of y)

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Answer

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