Question

If A does a work 6 hours more than B and both finish work in 13 hours 20minutes.how long will B take to do the work

Answer 1

Step-by-step explanation:

total time taken by both to finish the work = 13 hrs 20 min = 13 (20/60)

= 13(1/3) hrs = 40/ 3 hours

let b worked for x hours

A does work for = (x + 6) hrs

(x + 6) + x = 40/3

2x = (40/3) - 6 = 22/3

2x = 22/3 => x = 11/3

x = 11/3 hrs = 3 (2/3) hrs

= 3(2/3 *60) = 3 hours 40 minutes

Ans: b worked for 3 hours 40 minutes