Sun	Mon	Tue	Wed	Thu	Fri	Sat
23	24	25	26	27	28	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	31	1	2	3	4	5

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Multiple Choice Questions

A B and C can complete a work in 12 15 and 25 days respectively A started the work C and B joined hi...........

Qunatitative Aptitude (RBI Ast) Time and work

A, B and C can complete a work in 12, 15 and 25 days respectively. A started the work, C and B joined him after 3 and 6 days respectively. How much work did A complete?

3/5

2/3

1/8

3/7

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Explanation:

Solution:
Let total work completed in x days. So A worked for all x days. B for (x-6) days and C for (x-3) days. So
x/12 + (x-6)/15 + (x-3)/25 = 1.
Solving for x, we get x = 8
So A completed x/12 = 8/12 = 2/3rd of work.

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