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

Lakha and Bhura decided to complete the work in 27 days Starting with Lakha ...........

Quantitative Aptitude (RAS) Time and work

Direction: Study the following Table and answer the questions that follow:

Lakha and Bhura decided to complete the work in 27 days. Starting with Lakha they worked alternative for total 20 days. After that Bhura left the work but Lakha did it for 2 more days. After that he also left the work. Now Guran completed the remaining work on time. Then find how much time Guran will take to complete the whole work.

2(2/9)

22 (2/9)

12 (2/9)

22(4/7)

None of these

Explanation:

Explanation – Lakha completes the work = 32 days
Bhura completes the work = 25 days
Total work = 800 unit
Efficiency of Lakha and Bhura
Lakha = 25 unit
Bhura = 32 unit
Now we know they work alternatively for 20 days
L B L B ….
in two days work done by Lakha and Bhura = 25 +32 = 57 unit
in 20 days
= 57 × 10 = 570 unit
Lakha works for 2 more days
= 25 × 2 = 50 unit
Remaining work = 800 – (570+50)
= 180 unit
Guran completes the remaining work in 5 days
Efficiency of Guran = 180 / 5
= 36 unit
Guran can complete the total work
= 800 / 36
= 22 (2/9) days