New One Goal, Three Exams: Strategies for Mastering RBI, SEBI, and IFSCA Exams
Register

Question

A is twice as good a workman as B and together they finish a piece of work in 14 days. The number of days taken by A alone to finish the work is 

A 11 days Correct Answer Incorrect Answer
B 21 days Correct Answer Incorrect Answer
C 28 days Correct Answer Incorrect Answer
D 42 days Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Let daily work done of A =2units & Daily work done of B =1units So (A+B)’s 1 day work = 2+1 = 3units;                      Total work done by A & B in 14 days = 14×3 =42 units     So A alone can complete job in  = 42/2 = 21 days

Practice Next

Relevant for Exams:

×
×