search
Q: If A and B together can complete a work in 15 days and B alone can complete the same work in 21 days. In how many days can A alone will complete the same work?
  • A.
    option image
  • B.
    option image
  • C.
    option image
  • D.
    option image
Correct Answer: Option B -
answer image

Explanations:

explanation image