Time and work Practice Question and Answer
8 Q: If 12 men can do a piece of work in 24 days, then in how many days can 18 men do the same work?
1469 05ed740bbebc5ce408e2de32e
5ed740bbebc5ce408e2de32e- 136false
- 220false
- 318false
- 416true
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Answer : 4. "16"
Q: A work is done by three person A, B and C. A alone takes 10 hours to complete the work but B and C working together takes 4 hours, for the completion of the same work. If all of them worked together and completed 14 times of the work, then how many hours have they worked?
1467 0608be17e8899c91069d36e8c
608be17e8899c91069d36e8c- 142 hrfalse
- 228 hrfalse
- 340 hrtrue
- 420 hrfalse
- 545 hrfalse
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Answer : 3. "40 hr "
Q: 28 men can complete a piece of work in 15 days and 15 women can completed the same piece of work in 24 days. What is the respective ratio between the amount of work done by 30 men in 1 day and the amount of work done by 18 women in 1 days?
1466 05ea6ceeffb6adc33ce5c9503
5ea6ceeffb6adc33ce5c9503- 110 : 7true
- 23 : 5false
- 35 : 4false
- 49 : 5false
- 5Notfalse
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Answer : 1. "10 : 7 "
Q: A and B can do a piece of work in 10 days, B and C in 15 days and C and A in 20 days, C alone can do the work in : 1466 05cf0f3da0b8bee0fb6178aec
5cf0f3da0b8bee0fb6178aec- 160 daysfalse
- 2120 daystrue
- 380 daysfalse
- 430 daysfalse
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Answer : 2. " 120 days"
Q: A can finish a piece of work in 18 days and B can do the same work in half the time taken by A. Then working together. What part of the same work they an finish in a day? 1451 05cf0f058c97a225730e3b24b
5cf0f058c97a225730e3b24b- 1$${1\over 6}$$true
- 2$${2\over 5}$$false
- 3$${1\over 9}$$false
- 4$${2\over 7}$$false
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Answer : 1. " $${1\over 6}$$"
Q: A contract is to be completed in 50 days and 105 men were set to work, each working 8 hour a day. After 25 days, 2/5th of the work is finished. How many additional men be employed, so that the work may be completed on time, each man now working 9 hour a day?
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601a4ff3552e5f41f7b07200- 134false
- 236false
- 335true
- 437false
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Answer : 3. "35"
Q: Ramesh can do a work in 21 days and Mahesh in 42 days. If they work on it together for 7 days, then what fraction of work is left?
1441 05f2a770f57c6a23ea65d9b5c
5f2a770f57c6a23ea65d9b5c- 1$$ {1\over5}$$false
- 2$$ {1\over4}$$false
- 3$$ {1\over2}$$true
- 4$$ {2\over3}$$false
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Answer : 3. "$$ {1\over2}$$"
Q: 10 men can complete a piece of work in 15 days. They started work and after five days 10 women joined them and the work has finished in next 5 days. In how many days can 25 women finish the same piece of work?
1438 05ee20027ebfcbb050457de58
5ee20027ebfcbb050457de58- 14 daysfalse
- 25 daysfalse
- 36 daystrue
- 48 daysfalse
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