Mental ability test for BCS and other competitive exam

Mental ability test for BCS and other competitive exam 

1.  A rectangular carpet has an area of 120 sq meters and a perimeter of 46 meters. The length of its diagonal (in meters) is:

Answer :17

2. A well with 14 m inside diameter is dug 10 m deep. Earth taken out of it, has been evenly spread all around it to a width of 21m to form an embankment. The height (in meters) of the embankment is:

Answer :2/3

3. Study the information carefully and answer the given question.
Eight friends A. B, C, D, E, F, G and H are sitting around a circular table facing the centre and are equidistant from each other. D sits exactly between E and H. A is third to the left of G, and G sits opposite F'. E Is third to the left of C.
ln which of the following pairs, is the first person sitting; to the immediate left of the second person?

Answer :HD

4. A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity (in kg.) sold at 18% profit is:

Answer :600

5. River is running at 2 kmph. It took a man twice as long to row up asto row down the river. The rate (in km/hr) of the man in still water is:

Answer :6

6. A train B speeding with 120 kmph crosses another train C running in the same direction, in 2 minutes. If the lengths of the trains B and C be 100 m and 200 m respectively, what is the speed (in kmph) of the train C?

Answer :111

7. A, B, C and D live in a building having 14 floors, A lives two floors above B. C lives on the 14th floor immediately above A. D neither lives immediately above nor immediately below B. The first 7 floors of the building are vacant. On which of the following floor does D live?

Answer :Cannot be determined

8.  If 9 men working 71/2 hours a day can finish a piece of work in 20days, then how many days will be taken by 12 men, working 6 hours a day to finish the work? It is being given that 2 men of latter type work as much as 3 men of the former type?

Answer :121/2

9. Rs. 600 are divided among A, B, C so that Tk. 40 more than 2/5 th of A’s share, Tk. 20 more that 2/7 th of B’s share and Tk. 10 more than 9/17 th of C’s may all be equal. What is A’s share (in Rupees)?

Answer :150

10.  On a Tk. 10, 000 payment order, a person has choice between 3successive discounts of 10%, 10% and 30% and 3 successive discounts of 40%, 5% and 5%. By choosing the better one he can save (in Rupees):

Answer :255

11.  A man’s basic pay for a 40 hours’ week is Tk. 200. Overtimes is paid at 25% above the basic rate. In a certain week, he worked overtime and his total was Tk. 300. He therefore, worked for a total of (in hours):

Answer :56

12. Three years ago the average age of A and B was 18 years. While Cjoining them now, the average becomes 22 years. How old (in years) is C now?

Answer :24

13. The mean temperature of Monday to Wednesday was 370C and of Tuesday to Thursday was 340C, if the temperature on Thursday was 4/5th that of Monday, then what was the temperature on Thursday?

Answer :360C

14. The square root of 3 + “5 is :

Answer :?����?�(5/2) + ?����?�(1/2)

15. An employee may claim Tk. 7.00 for each km when he travels by taxi and Tk. 6.00 for each km if he drives his own car. If in one week he claimed Tk. 595 for traveling km. How many kms did he travel by taxi?

Answer :55

16. If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is:

Answer :73/77

17. In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, the dividend is:

 Answer :5336

18. Among the numbers given below which one is mono -digital:

Answer :9

19. Point P is 10 m to the West of Point A. Point B is 2m to the South of Point P. Point Q is 6m to the East of Point B.
Point C is 2m to the North of Point Q. Which of the following three points fall in a straight line?

Answer :A,C,P

20. Study the following information carefully to answer these questions.
J, K, H, R, F, L, N and Q are sitting around a circular table facing the center. H is third to the left of L who is to the immediate right of K. R is third to the left of N but is not a neighbor of H or L.  is second to the right of Q.
 Who is second to the left of N?

Answer :J

21.  What should come in the place of question mark (?) in the number series given below?
25, 34, 52, 79, 115,?

Answer :160

22. Area of a triangle 20m. length and 15m. breadth

Answer :300sq.m

23.  A bus of length 10 m is overtaking another bus of the same length. If their speeds are 12m/s and 8m/s, how much time would be taken for overtaking ?

 Answer :5 sec

24. A vegetable-fruit merchant purchased 200 boxes of apples at the rate 5 boxes for Rs.40 and sold all the apples at the rate 4 boxes for Rs.50. Percentage of his profit is ?

Answer :56.25%

25. The sum of the ages of a father and son is 52. The difference their ages is 28, then the age of the father is ?

Answer :40