Question
Mathematics Question on Time and Work
Work done by A in one day is half of the work by B in one day. Work done by B is half on the work done by C in one day. If C alone can do the work in 7 days, then in how many days can A, B and C together complete the work ?
A
4
B
14
C
21
D
28
Answer
4
Explanation
Solution
The correct option is (A):4.