Q281
Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave the work due to illness and Suresh completes rest of the work in 3 days. How many days Suresh alone can take to complete the whole work ?
A.
32 days
B.
28 days
C.
29 days
D.
30 days
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
(Ramesh & Rahman)'s 1 day's work∴ Their 10 day's work
∴ Remaining work
∵ Suresh does work in 3 days
∴ Time taken by Suresh in doing 1 work = 3 × 10 = 30 days