Question

9 Girl and 11 boys can do piece work in 25 days. IF 3 girls work as much as 5 boys , in how many days will 6 girl and 10 boys finish same work ?

Answer 1

32.5 days

Explanation:

9 girls & 11 boys complete the piece work in 25 days.

3 girls equal 5 boys. So 9 girls equal 15 boys

15 + 11 =26 man-power complete in 25 days. So man days 26×25= 650

6girl &10 boys complete work

Now manpower

6 girls are equivalent to 10 boys, and with that 10 boys converted from the 6 girls+10 boys = 20 manpower

Man days 650 So no. Of days 650/20=32.5 Days.

we get 650 from the manpower x number of days. both equations must add up to 650. Therefore, it takes 6 girls and 10 boys 32.5 days