Question

Q11. A and B can do apiece of work in 16 days together, while B and C, together can do the same work in 24 days. If A is twice as good as C then the no of days taken by A to complete the work alone is

a) 20
b) 16
c) 40
d) 30​

Answer 1

Answer:

40

Step-by-step explanation:

Both A and B can do= 1/16 part of the work in 1- day

Since A is 2- times efficient than B, if A can do the complete work in X- days, B will do it in in 2X days.

So 1/X + 1/2X = 1/16

So 3/2X= 1/16 ; Therefore X= 24

So A alone can do the complete work in 24 - days.

B alone can do the complete work in 24 x 2= 48 days.