Quantitative Aptitude

1. 3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?                                                                               (4)

1. 1. 9
2. 2. 10
3. 3. 11
4. 4. 12

2. Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?                                                 (2)

1. 1. 648
2. 2. 1800
3. 3. 2700
4. 4. 10800

3. 39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?                                                                                                (2)

1. 1. 10
2. 2. 13
3. 3. 14
4. 4. 15

4. If a quarter kg of potato costs 60 paise, how many paise will 200 gm cost?                          (1)

1. 1. 48 paise
2. 2. 54 paise
3. 3. 56 paise
4. 4. 72 paise

5. A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions mad by the larger wheel is:                                      (2)

1. 1. 4
2. 2. 9
3. 3. 12
4. 4. 49