SBI PO Quantitative Aptitude (Time & Work, Approximation) For Prelims: 16th March 2019

Dear Aspirants,

Quantitative Aptitude Quiz For SBI PO 

Q1. A can complete a piece of work in 10 days. B is 33.33% less efficient than A. calculate the number of days required to both to complete the work.

Solution:

Q2. A can do 50% more work than B can do in the same time. B alone can do a piece of work in 20 hr. A, with the help of B, can finish the same work in how many hours?

Solution:

Q3. 20 Men can complete a piece of work in 15 days. One man starts the work and after every day one more man joins the work and this continues till the work is completed. Then, in how many days will the work be completed?

Solution:

Q4. Three members of a family A, B and C, work together to get all household chores done. The time it takes them to do the work together is six hours less than A would have taken working alone, one hour less than B would have taken alone, and half the time C would have taken working alone. How long did it take them to do these chores working together?

Solution:

Q5. Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work ?

Solution:

Q6. Two men A and B working together complete a piece of work which it would have taken them 30 and 40 days respectively to complete if they worked separately. If they received a payment of Rs. 2100, B’s share is:

Solution:

Q7. If A and B working separately can do a piece of work in 8 and 12 hours respectively. If they work alternatively every hour starting with A at 9 a.m., when will be the work completed?

Solution:

Q8. A and B undertook a work for Rs 350. A got Rs 150 more than that of B, when they worked together. B takes 9 days more than A, when they work individually. In how many days A and B working together can do the whole work?

Solution:

Q9. A started a work and left after working for 3 days. Then B was called and he finished the work in. Had A left the work after working for, B would have finished the remaining work in 9 days. In how many days can each of them, working alone, finish the whole work?

Solution:

Q10. A certain job was assigned to a group of men to do it in 20 days. But 12 men did not turn up for the job and the remaining men did the job in 32 days. The original number of men in the group was

Directions (11-15): What approximate value should come in place of the question mark (?) in the following questions ? (You are not expected to calculate the exact value.) 


Q11. 39.05 × 14.95 – 27.99 × 10.12 = (36 + ?) × 5

Solution:

Q12.

Solution:

Q13.

Solution:

Q14. (49.99)² – (8.9)² – (15.9)² = ?

Solution:

Q15. 30.06% of 499 + 39.99% of 799 = ?

Solution:

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