### Junior Deputy Director in Intelligence Bureau (2008)

(61) . . A 100 meters long train passes a bridge @ 72 km/hr in 25 seconds. What is the length of the' Bridge?

1. 400 m

2. 170 m

3. 600 m

4. None

(62) . If 5x2 - 4x - 1 is divided by x - 1, the remainder is:

1. 0

2. 2

3. 1

4. None

(63) . . During a 5-day festival, the number of visitors tripled each day. If the festival opened on a Thursday with 345 visitors, what was the attendance on that Sunday?

1. 345

2. 1035

3. 1725

4. 9315

(64) . All sold a table Rs.800 which he was bought for Rs.1000. What is his % loss?

1. 0.2

2. 0.6

3. 0.14

4. 0.17

(65) . The area of the kitchen is n times the area of the balcony. Hence n is

1. 1.5

2. 2.5

3. 3.5

4. 4.5

(66) . The number, whose 17% is 51, is

1. 200

2. 100

3. 300

4. 210

(67) . A car washer can wash 8 cars in 18 minutes. At this rate how many cars can be washed, in three hours?

1. 13

2. 40

3. 80

4. 125

(68) . There are four numbers. Average of the first three is 15 and that of the last three is 16. If the last number is 19 find the first number:

1. 16

2. 18

3. 20

4. 21

(69) . 10 men can complete a job in 14 days. How long will it take 4 men to finish the same job if they work? at the same rate?

1. 33 days

2. 35 days

3. 37 days

4. 39 days

(70) . A man takes 50 minutes to cover a certain distance at a speed of 6 km/hr. If he walks with a.speed of 1 0 km/hr. he covers the same distance

1. 1 hour

2. 30 minutes

3. 20 minutes

4. 10 minutes