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BKB Senior Officer-2012

6. At 3 A.M. the temperature was 13º below zero.By noon, it had risen to 32.What was the average hourly increase in temperature?

[BKB Senior Officer-2012 : 2012]

1. (19/9)º

2. (19/6)º

3. 5º

4. 7.5º

Answer

7. If - 7 ≤ x ≤ 7 and 0 ≤ y ≤ 12, what is the greatest possible value of y-x?

[BKB Senior Officer-2012 : 2012]

1. -19

2. 5

3. 7

4. 19

Answer

8. If (7a) (7b)= 7c/7d, what is d in terms of a, b, and c?

[BKB Senior Officer-2012 : 2012]

1. c/ab

2. c -a - b

3. a + b - c

4. c - ab

Answer

9. In January, the value of a stock increased by 25%, and in February,it decreased by 20%. How did the value of the stock at the end of February compare with its value at the beginning of January?

[BKB Senior Officer-2012 : 2012]

1. It was less

2. It was 5% greater

3. It was the same.

4. It cannot be determined from the information given.

Answer

10. The population of a country doubled every 10 years from 1960 to 1990. What was the percent increase in population during this time?

[BKB Senior Officer-2012 : 2012]

1. 200%

2. 300%

3. 700%

4. 800%

Answer