A can do one third of a work in 15 days, B can do 75% of the same work in 18 days and C can do the same work in 36 days. B & C work together for 8 days. In how many days will A alone complete the remaining work?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 20 days.
A = 45 days
B = 24 days
C = 36 days
LCM = 360
B + C work for 8 days
Totak work done = (15 + 10) 8 unit
= 25 × 8 = 200 units
Work left = 360 - 200 = 160 units
Days for A to complete the remaining work = 160/8 = 20 days