Time and work Practice Question and Answer
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Q: A can do a piece of work in 4 hours; B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it ? 1602 05cf0f481c97a225730e3b267
5cf0f481c97a225730e3b267- 110 hoursfalse
- 212 hourstrue
- 38 hoursfalse
- 424 hoursfalse
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Answer : 2. " 12 hours"
Q: Navneet and Prabhat can complete a work in 20 and 25 days respectively. They work for Rs 4500. Find their wages. 4334 25d1490e997a68b089a7aa712
5d1490e997a68b089a7aa712- 1Rs 2000, Rs 2500false
- 2Rs 3000, Rs 1500false
- 3Rs 2500, Rs 2000true
- 4Rs 3500, Rs 1000false
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Answer : 3. "Rs 2500, Rs 2000"
Q: A can do a piece of work in 15 days and B in 20 days. If they together work it for 4 days, then the fraction of the work that is left is: 1597 05cf0eb770b8bee0fb6178acf
5cf0eb770b8bee0fb6178acf- 1$${8\over 15}$$true
- 2$${7\over 15}$$false
- 3$${1\over 4}$$false
- 4$${1\over 10}$$false
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Answer : 1. "$${8\over 15}$$"
Q: Ratan can complete a work in \(5 {1 \over 2}\) days while Rupesh can complete it in \(10 {1 \over 2}\) days. In how many days can they both complete it working on it together? 4540 25d147c239aeb0a08f1e67215
5d147c239aeb0a08f1e67215- 1\(3 {39 \over 64 }\)true
- 2\(4 {39 \over 64 }\)false
- 3\(5 {39 \over 64 }\)false
- 4\(6 {39 \over 64 }\)false
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Answer : 1. "\(3 {39 \over 64 }\) "
Q: A can do a piece of work in 6 days and B in 9 days. How many days will both take together to complete the work? 1740 05cf0eadb0b8bee0fb6178aca
5cf0eadb0b8bee0fb6178aca- 17.5 daysfalse
- 25.4 daysfalse
- 33.6 daystrue
- 43 daysfalse
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Answer : 3. " 3.6 days"
Q: A can cultivate $${2\over 5}$$ of a land in 6 days and b can cultivate $${1\over 6}$$ of the same land in 10 days. Working together A and B can cultivate $${4\over 5}$$ of the land in; 1780 05cf0ec53c97a225730e3b246
5cf0ec53c97a225730e3b246- 14 daysfalse
- 25 daysfalse
- 38 daystrue
- 410 daysfalse
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Answer : 3. " 8 days"
Q: A and B can do a piece of work in 72 days. B and C can do it in 120 days. A and C can do it in 90 days. In how many days all three together can do the work ? 1698 05cf0f244c97a225730e3b25d
5cf0f244c97a225730e3b25d- 180 daysfalse
- 2100 daysfalse
- 360 daystrue
- 4150 daysfalse
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Answer : 3. " 60 days"
Q: A, B and C can complete a work in 10, 15 and 20 days respectively. A and B start it together. B is replaced by C after 2 days. A leave it after one more day. In how many days work was completed? 3028 05d1485969aeb0a08f1e67225
5d1485969aeb0a08f1e67225- 113false
- 2\(13 {1 \over 13 }\)true
- 3\(18 {4 \over 3 }\)false
- 418false
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Answer : 2. " \(13 {1 \over 13 }\)"
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