Question

4 men and 6 boys can finish work in 20 days whereas 3 men and 4 boys can finish work in 28 days find the time taken by one man alone and one boy alone to finish the work​

Answer 1

Answer:

Step-by-step explanation:

Lets consider the no. of days a boy would take to complete the whole task alone would be y days.

Then in one day he would have completed 1/y of the total work.

Considering the same for a men he would have completed 1/x of the work every day.

So 4 men and 6 boys would have completed 4/x + 6/y work in one day.

Which is equal to 1/20 of the whole work needed to be completed.

Considering the same for second situation we get the following equation:

3/x+4/y=1/28 of the whole work.

So you can now easily find 1/x and 1/y

by taking them as p and q variables.

Answer 2

Answer:

Hope it helps you......