Times and Work For SBI PO Set – 08

1) A contractor undertook to finish a work in 150 days and employed 75 men. After 60 days he found that he had already done 2/3 of the work . how many men can be discharged now so that the work may finish in time.

a) 60

b) 25

c) 35

d) 50

e) 45

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2) From a group of 3 men, 4 women and 2 children, 4 people are to be chosen to form a committee. What is the probability that the committee contains 1 each of men, women and children?

a) 4/15

b) 12/ 21

c) 4/19

d) 11/31

e) None of these

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3) P, Q and R can complete a piece of work in 9, 18 and 27 days respectively. After 1/3 work is completed P left the work and the remaining work is completed by Q and R together. Find the days required to complete the remaining work.

a) 36/7

b) 35/6

c) 36/5

d) 32/5

e) None of these 

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4) 3 men and 4 women can complete a piece of work in 12 days while the same is finished by 2 men and one woman in 15 days. A boy who is 25% less efficient than that of man can complete the piece of work in how many days.

a) 400/11

b) 420/11

c) 430/11

d) 450/11

e) None of these 

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5) A man and a boy received Rs 800 as wages for 5 days for the work they did together. The man’s efficiency in the work was three times that the boy. What is the daily wages of the boy ?

 a)  Rs. 76

b)  RS. 56

c Rs.  44

d) Rs. 40

e) None of these

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6) The wages of 45 women is Rs. 15525 in 48 days. If daily wages of a man are double that of a women, then the number of men required to work for 16 days to receive Rs 5750 will be?

a) 30

b) 25

c) 20

d) 35

e) 40

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7) Archana is thrice as good as Ragavi and together finish a piece of work in 21 days. Archana alone can finish the work in how many days?

a) 28

b) 14

c) 35

d)  42

e)  None of these 

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9. Radha can wash a clothes in 20 minutes, but with the help of her sister she washes the clothes in 12 minutes . In what time her sister alone can wash all the clothes

a) 30 mins

b) 25 mins

c) 20 mins

d) 15 mins

e) None of these

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10. Arjun and Bama can do a piece of work in 20 days ,Bama and Chitra can do a piece of work in 36 days,Arjun and Chitra can do a piece of work in 30 days. In how many days , Arjun ,Bama and Chitra can complete the whole work,working together?

a) 10

b) 13

c) 12

d) 18

e) 15 

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