Question

If 10 men , 30 women and 40 boys can do a piece of work in 110 days, working for 6 hours each day. In how many days will 20 men , 15 women and 20 boys do another piece of work thrice as large as the first, working 9 hours a day, if the amount of work done by each man, woman and boy is in the ratio 3:2:1?
A) 240
B) 300
C) 290
D) 260

Answer 1

A) 240 is the right answer I think so.....

Answer 2

Answer:

Step-by-step explanation:

10 men =30 boys

30 women = 60 boys

There are 40 boys

Equivalent to 130 boys

20 men =60 boys

15 women = 30 boys

Now there are 20 boys

Equivalent to 110 boys

130 boys 6 hours daily in 110 days

1 boy 1 hour daily in 110*6*130 days

110 boys 9 hours daily in

110*6*130/(110*9)= 260/3 days same work.

Thrice work will be completed in (260/3)*3= 260 days