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 and B can complete a task in 30 hours and 10 hours resp Only A works during the first hour and bot...........

Quantitative Aptitude(IBPS PO) Time and work

A and B can complete a task in 30 hours and 10 hours resp. Only A works during the first hour and both A and B work during the 2nd hour. If they continue working in this pattern. In how many hours would 41/60 of the work be completed?

7(1/5) hours

5(1/4) hours

6(1/3) hours

8(1/2) hours

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Explanation:

Work done in first 2 hours = 1/30 + (1/10 + 1/30)
= 1/6
Work done in first 8 hours = 4*1/6
Work left to be completed = 41/60 – 4/6 = 1/60
Number of hours taken to complete the work = 8(1/2) hours

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