Two persons A and B can complete a piece of work in 15 days and 30 days respectively.

Two persons A and B can complete a piece of work in 15 days and 30 days respectively. If they work together, what part of the work will be completed in 5 days?

Quiz

Answer/Solution

1/2

Steps/Work

A's one day's work = 1/15
B's one day's work = 1/30
(A + B)'s one day's work = 1/15 + 1/30 = 1/10
The part of the work completed in 5 days = 5 (1/10) = 1/2.
Answer:D

Physics Calculator / Auto Solver

Two persons a and b can complete a piece of work in days and days respectively. If they work together, what part of the work will be completed in days?

Calculated Answer

0.5

Step by Step Solution

In order to solve problem, you must evaluate n2 * (1 / n0 + 1 / n1).

n0 =15
n1 =30
n2 =5