Numberical Ability clerk 2

1. Water is filled in a cylindrical vessel in such a way that its volume doubles after every five minutes. If it takes 30 minutes for the vessel to be full, then the vessel will be one fourth full in

(a) 20 minute (b) 25 minutes(c) 7 minutes 30 seconds (d) 10 minutes

2. If 10 cats can kill 10 rats in 10 minutes how long will it take 100 cats to kill 100 rats

(a) 1 minutes (b) 10 minute (c) 100 minutes (d) 10000 minutes

3. If 75 % of a number is added to 75, the result is the number itself, then the number is:

(a) 250 (b) 750 (c) 400 (d) 300

4. A school has enough food for 400 children for 12 days. How long will the food last if 80 more children join them?

(a) 6 days (b) 7 days (c) 10 days (d) 8 days

5. The sum of two consecutive numbers is 55, which is the largest number?

(a) 25 (b) 28 (c) 26 (d) 27

6. When a shop keeper sold 2/3 of an item, he got the cost price of the whole lot. What is the percentage of his profit?

(a) 33 1/8 % (b) 66 2/3 % (c) 25 % (d) 50 %

7. The perimeter of a rectangular field is 480 meters and the ratio between the length and breadth is 5:3. The area of the field is:

(a) 7,200m2 (b) 15,000m2 (c) 54,000m2 (d) 13,500m2

8. If you add 100 to a certain number, the result will be more than, if you multiply that number by 1000 what is that number?

(a) 1.5 (b) 1.0 (c) 2.5 (d) 2.0

9. A student has to secure 40 % marks to pass. He gets 150 marks and fails by 30 marks. What is the maximum marks?

(a) 400 (b) 500 (c) 475 (d) 450

10. The circumcentre of an obtuse triangle will always be in the

(a) Interior of the triangle(b) Midpoint of the diameter(c) Exterior of the triangle(d) Midpoint of the side of the triangle

11. What is the degree measure of a semicircle?

(a) 360 (b) 90 (c) 270 (d) 180

12. Which among the following is the point of intersection of the medians of a triangle?

(a) Circumcentre (b) Centroid (c) Orthocenter (d) Incentre

13. The height of a cone and its base diameter are equal. If the base radius is ‘r’ what is its slant height?

(a) 3r (b) 4r (c) v5r (d) v3r

14. The radii of two spheres are in the ratio 2:3. What is the ratio of their surface areas?

(a) 4:9 (b) 2:3 (c) 8:27 (d) 4:6

15. What is the common ratio of the progression 3v2, 6, 6v2 ?

(a) 3 (b) 2 (c) v2 (d) v3

16. In class of 100 students 50 students passed in Mathematics and 70 passed in English, 5 students failed in both Mathematics and English. How many students passed in both the subjects?

(a) 25 (b) 30 (c) 50 (d) 45

17. Speed of a boat in still water is 9 km/hr. It goes 12 km down stream and comes back to the starting point in three hours.What is the speed of water in the stream?

(a) 3 km/hr (b) 4 km/hr (c) 4.5 km/hr (d) 5 km/hr

18. A student was asked to add 16 and subtract 10 from a number.He by mistake added 10 and subtracted 16. If his answer is 14 what is the correct answer?

(a) 20 (b) 26 (c) 30 (d) 32

19. Find the area of a right angled triangle whose hypotenuse is 10 cm and base 8 cm.

(a) 48 sq.cm (b) 34 sq.cm (c) 24 sq.cm (d) 42 sq.cm

20. Find the next term of the series: 3, 6, 9, 18, 27, 54, ……

(a) 81 (b) 69 (c) 63 (d) 57

21. A number consists of 20 plus 20% of its value. The number is:

(a) 20 (b) 22 (c) 25 (d) 30

22. 20% of 5 + 5% of 20 =

(a) 5 (b) 2 (c) 6 (d) 21

23. The angle between the minute hand and the hour hand of a clock, when the time is 8.30

(a) 800 (b) 600 (c) 1050 (d) 750

24. Rs. 1581 is divided among A, B and C in the ratio 10 : 15 : 6. What is the share of B?

(a) 306 (b) 765 (c) 700 (d) 510

                                                              

25. The sum of four consecutive counting numbers is 154. Find the smallest number:

(a) 36 (b) 37 (c) 38 (d) 31

Answers

1.A
2.B
3.D
4.C
5.B
6.D
7.D
8.B
9.D
10.C
11.D
12.B
13.C
14.C
15.C
16.A
17.A
18.B
19.C
20.A
21.C
22.B
23.D
24.B
25.B