100+ Time and Work Questions for SBI, IBPS Bank PO Exams - 1

Question: 1

A completes $${7} / {10}$$ of a work in 15 days. Then he completes the remaining work with the help of B in 4 days. The time required for A and B together to complete the entire work is

(A) $$8{1}/{4}$$

(B) $$10{1}/{2}$$

(C) $$13{1}/{3}$$

(D) $$14{1}/{4}$$

Question: 2

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 is

(A) 1 days

(B) 4 days

(C) 6 days

(D) 8 days

Question: 3

A and B can separately do a piece of work in 20 and 15 days respectively. They worked together for 6 days, after which B was replaced by C. If the work was finished in next 4 days, then the number of days in which C alone could do the work will be

(A) 20

(B) 30

(C) 40

(D) 50

Question: 4

Two spinning machines A and B can together produce 3,00,000 metres of cloth in hours. If machine B alone can produce the same amount of cloth in 15 hours, then how much cloth can machine A produce alone in 10 hours?

(A) 50,000 metres

(B) 1,00,000 metres

(C) 1,50,000 metres

(D) 2,00,000 metres

Question: 5

A tyre has two punctures. The first puncture alone would have made the type flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat?

(A) $$1{1} / {2}$$

(B) $$1{1} / {3}$$

(C) $$3{1} / {2}$$

(D) $$3{3} / {5}$$