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Arithmetic Aptitude :: Time and Work

Home > Arithmetic Aptitude > Time and Work > General Questions

101. Babla alone can do a piece of work in 10 days. Ashu alone can do it in 15 days. The total wages for the work is Rs.5000. How much should be Babla be paid if they work together for an entire duration of work.

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Answer: Option D

Explanation:

Bablu work = 1/10
Ashu work = 1/15
Total work = 1/10+1/15 = 3+2/30 = 5/30
Total work = 6 days
Bablu paid = 6/10*5000 = 3000

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102. If 15 men can dig a pit of 35 cu units in 7 days. How many men can dig a pit of 65 cu units in 5 days?

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Answer: Option D

Explanation:

m1*t1*w2=m2*t2*w1
m2=(m1*t1*w2)/(w1*t2)
m2=(5*7*65)/(35*5)=39 men

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103. Radha can paint 35 paintings in 25 days. How many days will she take to paint 55 paintings?

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Answer: Option A

Explanation:

Here is no explanation for this answer

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104. A does 3/4 of a piece of work in 24 days. He then calls in B and both of them together complete the remaining work in 4 days. How long would B alone take to do the entire work?

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Answer: Option C

Explanation:

A does 3/4 work in 24 days
whole work do (4/*24=32
so remaining 1/4 work he will do= 32-24=8
A+B both do the remaining work in 4 days
so both take only 50% time and B can also do th remaining work in 8 days
so B also do the whole work in 32 dys.

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105. A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work In :

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Answer: Option A

Explanation:

Here is no explanation for this answer

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106. A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Black begins to work for a period of 6 days. How many days will it take Mr.Blue to complete the contract?

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Answer: Option C

Explanation:

Here is no explanation for this answer

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107. A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

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Answer: Option A

Explanation:

Work done by A in 20 days = 80/100 = 8/10 = 4/5

Work done by A in 1 day = (4/5) / 20 = 4/100 = 1/25 --- (1)

Work done by A and B in 3 days = 20/100 = 1/5 (Because remaining 20% is done in 3 days by A and B)

Work done by A and B in 1 day = 1/15 ---(2)

Work done by B in 1 day = 1/15 1/25 = 2/75

=> B can complete the work in 75/2 days = 37 (1/2) days

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