A can build a wall in 30 days, while B alone can build it in 40 days If they - Maths - Probability

Question

A can build a wall in 30 days, while B alone can build it in 40
days If they build it together and get a payment of Rs 7000, what
is b's share?

Pranitha Maria Roy · Answer

If A=30 days
Then, b= 40 days
Therefore, A:B= 40:30= 4:3 A+B= 7000
= 4x+3x=7000
=7x=7000
Therefore x=7000/7=₹1000
If x=₹1000,
then A’s share=3x=3*1000
=₹3000
B’s share=4x=4*1000
=₹4000
Total= 4000+3000=₹7000

A can build a wall in 30 days, while B alone can build it in 40 days. If they build it together and get a payment of Rs 7000, what is b's share?