Practice MCQ Questions and Answer on Time and Work
241.
5 men and 8 women can complete a task in 34 days, whereas 4 men and 18 women can complete the same task in 28 days. In how many days can the same task be completed by 3 men and 5 women?
- (A) 64
- (B) 72
- (C) 56
- (D) 36
242.
A tank can be filled with water by two pipes A and B together in 36 minutes. If the pipe B was stopped after 30 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in:
- (A) 45 minutes
- (B) 60 minutes
- (C) 75 minutes
- (D) 90 minutes
243.
Anuj and Manoj can together paint their house in 30 days. After working for 20 days, Anuj has to go out and Manoj finished the remaining working the next 30 days. If Manoj had gone away after 20 days instead of Anuj, then Anuj would have completed the remaining work in ?
- (A) 15 days
- (B) 20 days
- (C) 25 days
- (D) 35 days
244.
The charges per hour of internet surfing is increased by 25% then find the percentage decrease in the time period of surfing user (a net savy) who can afford only 10% increase in expenditure:
- (A) 22%
- (B) 12%
- (C) 15%
- (D) 9.09%
245.
A alone can do $$\frac{2}{5}$$ of a work in 12 days. B is 25 percent more efficient than A. C alone can do the same work in 12 days less than B. D is 25 percent less efficient than C. If they all work together, then the work will be completed in how many days?
- (A) $$\frac{{300}}{{47}}$$
- (B) $$\frac{{240}}{{53}}$$
- (C) $$\frac{{180}}{{43}}$$
- (D) $$\frac{{200}}{{51}}$$
246.
A complete $$\frac{7}{{10}}$$ of a work in 15 days, then he completed the remaining work with the help of B in 4 days. In how many day A and B can complete entire work together?
- (A) $$10\frac{1}{2}\,\,{\text{days}}$$
- (B) $$12\frac{2}{3}\,\,{\text{days}}$$
- (C) $$13\frac{1}{3}\,\,{\text{days}}$$
- (D) $$8\frac{1}{4}\,\,{\text{days}}$$
247.
Two men can do a piece of work in x days. But y women can do that in 3 days. Then the ratio of the work done by 1 man and 1 woman is ?
- (A) 3y : 2x
- (B) 2x : 3y
- (C) x : y
- (D) 2y : 3x
248.
Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:
- (A) 15
- (B) 16
- (C) 18
- (D) 25
249.
Kamal can do a work in 15 days. Bimal is 50% more efficient then Kamal. The number of days, Bimal will take to do the same piece of work, is = ?
- (A) $$7\frac{1}{2}$$
- (B) 10
- (C) 12
- (D) 14
250.
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:
- (A) 15 days
- (B) 20 days
- (C) 25 days
- (D) 30 days