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Lesson Posted on 05 Apr CBSE/Class 4/English/Grammar CBSE/Class 5 CBSE/Class 10/English +2 CBSE/Class 9/English CBSE/Class 8 less

Avoid using the word

Deepika Agrawal

I can explain the things very well, So each and every students understand the things properly. I never...

very afarid - fearful very clean - spotless very deep - profound very angry -furious very clear - obvious very depressed- despondent very annoying - exasperating very cold - freezing very detailed- meticulous very bad - awful very colourful - vibrant very different -... read more
very afarid - fearful very clean - spotless very deep - profound
very angry -furious very clear - obvious very depressed- despondent

very annoying - exasperating

very cold - freezing very detailed- meticulous
very bad - awful very colourful - vibrant very different - disparate
very beautiful - gorgeous very competitive - cutthroat very difficult - Arduous

very big - massive

 

very complet - comprehensive very dirty - filthy
very boring - dull very confused - preplexed very dry - Arid
very bright - luminous very creative - innovative

very dull - Tedious

very busy - swamped very crowded - bustling very easy - Effortless
very calm-serene verycute - adorable very empty -Desolate
very careful - cautious very dangoures - perilous very excited - Thrilled
very cheap - stingy very dear -  cherished very exciting - Exhilarating
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Answered on 22 Apr CBSE/Class 4/English/Grammar

The cat jumped ______ the fence

Deepika Agrawal

Interested to teach to class 1 to 5, 6 to 8

The cat jumped over the fence.
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Lesson Posted on 10 Mar CBSE/Class 8 CBSE/Class 8/Maths CBSE/Class 6/Maths/Playing With Numbers/LCM and HCF +1 CBSE/Class 4/Maths/HCF and LCM less

Using reverse methodology in solving tricky math problems

Aditi P.

I have completed my B.Ed and would like to pursue teaching as a profession. I have taught to school students...

Hi,In this lesson, I will demonstrate how to solve a tricky problem (asked in a non regular manner) using reverse methods. Problem Statement: 2 Numbers x and y are in ratio 3:4 and there LCM is 48, Find the 2 numbers x and y. Explanation: This problem is different from a standard regular problem,... read more

Hi,

In this lesson, I will demonstrate how to solve a tricky problem (asked in a non regular manner) using reverse methods.

Problem Statement:

2 Numbers x and y are in ratio 3:4 and there LCM is 48, Find the 2 numbers x and y.

Explanation:

This problem is different from a standard regular problem, which asks to calculate LCM of 2 numbers.
So, we will first start by solving a regular problem and see, how we can derive a formula to solve the reverse problem statement.

Regular problem is, Find LCM of 12 and 16.

We take factors of 12    = 2 x 2 x 3.
Then take factos of 16  = 2 x 2 x 2 x 2.

The LCM would be taking the longest occuring natural number, among all factors.
Here factor 2 occurs longest as 4 times, and factor 3 occurs longest once.

Hence LCM =  2 x 2 x 2 x 2 x 3 = 48.

Now, If we analyze the factors of 12 ( 2 x 2 x 3 ) and 16 ( 2 x 2 x 2 x 2 ), and take ratio of 12/16, then we remove the common factors (2 x 2) and are left with ( 3 / (2 x 2) ) = 3 / 4.

Doesn't this look like the original problem mentioned above, x and y are in ration 3:4 .... ?

So now, the common factors that we removed by taking ration of 12 and 16, lets call it 'k' where k = ( 2 x 2 ).

While taking LCM, we will calculate it as k x (remaining non common factors ) = k x (2 x 2 x 3).

hence, If LCM = 48 (LCM of x and y) then 48 = k x (2 x 2 x 3). Hence, k = 4.

Therefore, x / y = ( 3 x k ) / ( 4 x k). Which gives, x = 12, and y = 16.

This way through using the regular method of calculating LCM, we were able to derive a formula to calculate 2 numbers
whose ratio and LCM is already given.

x = k x (numerator of ratio)

y = k x (denominator of ratio)

 

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Answered on 24 Jan CBSE/Class 4 Tuition

Monika Agarwal

For 5th standard all subjects fee would be 5500
Answers 242 Comments 5
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Answered on 24 Jan CBSE/Class 2/Maths/Mental Mathematics CBSE/Class 4/Maths CBSE/Class 4

B. Prem Chand

Rs. 2000/- p. m.
Answers 35 Comments 4
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Answered on 26 Jan CBSE/Class 4/Maths CBSE/Class 4

Padmini Roy

Experienced Home Tutor

2000 per month.
Answers 23 Comments 1
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Lesson Posted on 23/11/2018 CBSE/Class 4/English/Grammar/Verbs

Verb Tenses

Sayan Paul

I have been painting since childhood. So I can say I have experience for about 15 years in painting....

Verbs-Tenses. There are 12 verb tenses in grammar. Simple Present, Present Continuous, Present Perfect, Present Perfect Continuous, Simple Past, Past Continuous, Past Perfect, Past Perfect Continuous, Simple Future, Future Continuous, Future Perfect, Future Perfect Continuous. Simple Present- I read... read more

Verbs-Tenses.

There are 12 verb tenses in grammar.

Simple Present, Present Continuous, Present Perfect, Present Perfect Continuous, Simple Past, Past Continuous, Past Perfect, Past Perfect Continuous, Simple Future, Future Continuous, Future Perfect, Future Perfect Continuous.

Simple Present- I read the book almost every day.

Present Continuous- I am reading the storybook at this moment.

Present Perfect- I have read many story books till now.

Present Perfect Continuous- I have been reading since I was four years old

Simple Past- Last night, I read the entire book.

Past Continuous- Last night, I was reading the mystery book.

Past Perfect- I had read almost 500 books by the time I reach 12 years old.

Past Perfect Continuous- I had been reading at least a year before my sister learned to read.

Simple Future- I will read as much as I can this year

Future Continuous- I will be reading the story tomorrow

Future Perfect- I will have read 100 books by the end of this year.

Future Perfect Continuous- I will have been reading at least 3 hours before dinner tonight.

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Lesson Posted on 11/09/2018 Language/Spoken English CBSE/Class 4/English/Grammar CBSE/Class 9/English/Writing and Grammar

Learn English Easily - Part 1

Archana K.

I am a tutor, homemaker, internet marketer and a journalist, who has been working since past 7 years...

Try to make simple sentences first. Then you can extend the sentences. Examples:- Ravi came home.- Ravi came home from school.- Ravi came home from school at 5:30 PM.- Ravi came home from school at 5:30 PM and went to play.- Ravi came home from school at 5:30 PM and went to play with his friends.- Ravi... read more

Try to make simple sentences first. Then you can extend the sentences.

Examples:
- Ravi came home.
- Ravi came home from school.
- Ravi came home from school at 5:30 PM.
- Ravi came home from school at 5:30 PM and went to play.
- Ravi came home from school at 5:30 PM and went to play with his friends.
- Ravi came home from school at 5:30 PM and went to play with his friends on the playground.
- Ravi came home from school at 5:30 PM and went to play with his friends on the playground which is near to our home.
- Ravi came home from school at 5:30 PM and went to play with his friends on the playground which is near to our home, and returned at sharp 7 PM.
- Ravi came home from school at 5:30 PM and went to play with his friends on the playground which is near to our home, and returned at sharp 7 PM, then had some snacks.
- Ravi came home from school at 5:30 PM and went to play with his friends on the playground which is near to our home, and returned at sharp 7 PM, then had some snacks, watched tv, and started his homework.

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Answered on 02 Apr Language/Spoken English CBSE/Class 10/English Exam Coaching/Foreign Education Exam Coaching/Advanced Placement Tests Coaching/English Language & Composition +8 CBSE/Class 6/Science/Sorting Of Materials into Group CBSE/Class 2/Maths/Mental Mathematics CBSE/Class 1/Maths CBSE/Class 10/Social Studies CBSE/Class 9/Social Studies/History/Socialism in Europe and the Russian Revolution CBSE/Class 8/Social Studies/Civics/Law and Social Justice CBSE/Class 5/EVS/Animals CBSE/Class 4/EVS/Matter less

Arun Kumar Sahoo

Std 1 to 8th All subjects - 3500 for 1hr in month Std 5 - 4500 Std 6 - 5000 Std 7 - 7000 Std 8 - 6000 Spoken english - perclass is 750
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Answered on 22/02/2018 CBSE/Class 4/English CBSE/Class 10/English

Salman Ahmad Siddiqui

Expert Tutor

Widely spoken language through out the the globe..
Answers 11 Comments
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