Take Class 10 Tuition from the Best Tutors

• Affordable fees
• 1-1 or Group class
• Flexible Timings
• Verified Tutors

Search in

# The work done by (x - 3) men in (2x + 1) days and the work done by (2x + 1) men in (x + 4) days are in the ratio of 3 : 10. Find the value of x?

Tutor

Let the amount of work done by 1 man in 1 day is w. Then the work done by (x - 3) men in (2x + 1) days=(x - 3)(2x + 1)w. And the work done by (2x + 1) men in (x + 4) days=(2x + 1)(x + 4)w. By the given condition, / = 3 : 10 Simplifying: (x - 3) / (x + 4) = 3 / 10 --> 10x - 30=3x + 12 --> 10x...
Let the amount of work done by 1 man in 1 day is w. Then the work done by (x - 3) men in (2x + 1) days=(x - 3)(2x + 1)w. And the work done by (2x + 1) men in (x + 4) days=(2x + 1)(x + 4)w. By the given condition, [(x - 3)(2x + 1)w] / [ (2x + 1)(x + 4)w] = 3 : 10 Simplifying: (x - 3) / (x + 4) = 3 / 10 --> 10x - 30=3x + 12 --> 10x - 3x=30 + 12 --> 7x=42 --> x = 42/7 = 6 Answer: x = 6. read less

Maths Wizard

Always remember a formula for these type of questions where work no. of men and no. of days /working hours are given:- lhs = rhs m1 * d1* t1 / work done 1 = m2* d2* t2 / work done 2 here * = multiply and / = divide. ...
Always remember a formula for these type of questions where work no. of men and no. of days /working hours are given:- lhs = rhs m1 * d1* t1 / work done 1 = m2* d2* t2 / work done 2 here * = multiply and / = divide. m=men d= days As work done ratio by 1 to 2 is 3:10 just put the value (x-3)*(2x+1) /3 = (2x+1)*(x+4) /10. on solving 10x-30= 3x+12, 7x=42 Therefore x=6. read less

Related Questions

For what value of k, do the equations 3x - y + 8 = 0 and 6x - ky = -16 represent coincident lines?
The value of k should be equal to 2, and thus the equations, 3x - y + 8 = 0 and 6x - ky = -16 represent coincident lines
Aparna
If the numbers a, b, c, d and e form an A.P., then find the value of a – 4b + 6c – 4d + e.
Let a = A-2D b = A-D c = A d = A+D e = A+2D a-4b+6c-4d+e = A-2D-4(A-D)+6A-4(A+D)+A+2D = 0
Rayangowda
What is the difference between Arithmetic mean and Geometric mean?
If x, y are two no then AM=(x+y)/2 and GM = (xy)^(1/2).
Ambar
How can I get good score in class 10?
For getting good score regular study is very important.Study start from the beginning of syllabus given.First understand topic and remind it and recall your memory.When the examination come near study...
Raj

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Related Lessons

Derangements, Arrangement Of Things So That No Elements Appear In Their Original Place (Important for IITJEE)
"Like if I have 5 tshirts and i want to gift them to my 5 cousins named A,B,C,D,E, so find number of ways in which particular cousin won't get their particular tshirts." So number of ways: D(n)=n!*(1-1/1!+1/2!-1/3!+.....(-1)^n*1/n!)) Where...

Volume of the Cone
VOLUME OF THE CONE If, r=radis of the cone h= perpendicular height Then, 1)The volume of the cone =( 1/3 )πr2h Ex- If,r=14 cm, h=15cm, then 1)The volume of the cone =( 1/3 )πr2h ...

Problems On Probability theorem
1.If two regular six-sided dice are rolled at the same time, what is the probability that the sum of the their numbers will be prime? Possible Answers: 5/12 1/2 1/4 7/18 Correct...

Find The Length Of QU
Question: Solution:

SURFACE AREA OF CUBOID
THE CUBOID IS AS SHOWN IN THE ABOVE DIAGRAMS # It has 6 rectangular surfaces #It has 12 edges and 8 vertices. TOTAL SURFACE AREA OF CUBOID:- If Length of Cuboid= l Breadth(width) of Cuboid=...
Find Class X Tuition near you

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

### Looking for Class 10 Tuition Classes?

The best tutors for Class 10 Tuition Classes are on UrbanPro

• Select the best Tutor
• Book & Attend a Free Demo
• Pay and start Learning

### Take Class 10 Tuition with the Best Tutors

The best Tutors for Class 10 Tuition Classes are on UrbanPro