Loading....
Coupon Accepted Successfully!

Quantitative Aptitude

Open Flashcards

Work and Time

Question
4 out of 30
 

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?



A 12 days
B 15 days
C 16 days
D 18 days
E None of These

Ans. B

LCM=60 let total work be 60 unit. then

First 2 days work done by A is (3 unit × 2) = 6 unit

On 3rd day whole together can do (3+2+1=6 unit)

So, they work 12 unit in 3 day then,

They work 60 unit in


Work and Time Flashcard List

30 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)