PSC/BANK MATHS PREVIOUS QUESTIONS- PMQ2b

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MATHS PMQ2b

1.       A tank is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the tank is full, the leak will empty the tank in

a.       16 hrs

b.      20 hrs

c.       25 hrs

d.      40 hrs

e.      none of these

2.       The ratio between the rates of walking of A and B is 2:3. If the time taken by B to cover a certain distance is 36 minutes. the time taken by A to cover that much distance is

a.       24 min

b.      54 min

c.       48 min

d.      21.6 min

e.      none of these

3.       Two trains are running in opposite directions with speed of 62 kmph and 40 kmph respectively. If the length of one train is 250 metres, and they cross in 18 seconds, the length of the other train in metres is

a.       145

b.      230

c.       260

d.      cannot be determined

e.      none of these

4.       A man can swim 3 km/hr in still water. If the velocity of the stream is 2 km/hr, the time taken by him to swim to a place 10 km up stream and back is

a.       8 hrs

b.      8 ½ hrs

c.       9 ⅕ hrs

d.      12 hrs

e.      none of these

5.       Three fourth of a number is more than two third of the number by 5. The number is

a.       72

b.      60

c.       84

d.      48

e.      none of these

6.       The difference between the interests received from two different banks on Rs 5000 for two years is Rs 25. The difference in their rates is

a.       1%

b.      0.5%

c.       2.5%

d.      .25%

e.      none of these

7.       The diameter of the wheel of a bus is 140cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?

a.       200

b.      225

c.       100

d.      250

e.      none of these

8.       Two cubes have volumes in the ratio 1:27. The ratio of their surface areas is

a.       1:3

b.      1:8

c.       1:9

d.      1:18

e.      none of these

9.       If 5 men working 6 hrs a day can reap  a field in 20 days, how many days will 15 men reap the field, working 8 hrs a day?

a.       5

b.      6

c.       7 ½

d.      9

e.      none of these

10.   12 grams of an ornament containing gold and copper in the ratio 2:1 is meled with 18 grams of another ornament containing gold and copper in the ratio 5:1. The new cast will contain gold and copper in the ratio

a.       7:2

b.      10:1

c.       19:11

d.      23:7

e.      none of these

ANSWERS

1.       D

2.       B

3.       C

4.       D

5.       B

6.       D

7.       D

8.       C

9.       A

10.   D