Time and Work Questions and Answers
If A can do a work in 10 days and B can do the same work in 15 days, then how many days will they take to complete the work both while working together?
(A) 7
(B) 8
(C) 6
(D) 9
Correct Answer : C
12 men complete a work in 18 days. Six days after they had started working, 4 men joined them. How many days will all of them take to complete the remaining work?
(A) 10 days
(B) 12 days
(C) 15 days
(D) 9 days
Correct Answer : D
A daily-wages laborer was engaged for a certain number of days for ₹5,750; but being absent on some of those days he was paid only ₹ 5,000. What were his maximum possible daily wages?
(A) ₹ 125
(B) ₹ 250
(C) ₹ 375
(D) ₹ 500
Correct Answer : D
Ram and Shyam can do a work in 12 days, Shyam and Hari in 15 days, and Hari and Ram in 20 days. Accordingly, in how many days can Rama alone complete that work?
(A) 30
(B) 32
(C) 36
(D) 42
Correct Answer : A
3 men or 5 women can complete a work in 12 days. Accordingly, how much time will it take for 6 men and 5 women to do the same work?
(A) 4 days
(B) 5 days
(C) 6 days
(D) 7 days
Correct Answer : A
If p men working p hours per day for p days produce p units of work, then the units of work produced by n men working n hours a day for n days is
(A) $${p^2}\over {n^2} $$
(B) $${p^3}\over {n^2} $$
(C) $${n^2}\over {p^2} $$
(D) $${n^3}\over {p^2} $$
Correct Answer : D
If two persons, with equal abilities, can do two jobs in two days then 100 persons with equal abilities can do 100 similar jobs in
(A) 100 days
(B) 10 days
(C) 5 days
(D) 2 days
Correct Answer : D
40 men can complete a piece of work in 40 days. They started the work together. But at the end of each 10th day, 5 men left the job. The work would have been completed in
(A) $$ 56{2\over 3} days $$
(B) $$ 53{1\over 3} days $$
(C) 52 days
(D) 50 days
Correct Answer : A
A and B under took a work Rs 2200. A alone can do the work in 10 days and B alone can do the work in 12 days. If they work together, then what will be the difference (in Rs) in the amount they receive?
(A) 350
(B) 250
(C) 200
(D) 300
Correct Answer : C
5 men can do a piece of work in 6 days while 10 women can do it in 5 days. In how many days can 5 women and 3 men do it?
(A) 4 days
(B) 5 days
(C) 6 days
(D) 8 days
Correct Answer : B