20 Questions

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Questions and Answers

- 1.Find (7x + 4y ) / (x-2y) if x/2y = 3/2 ?
- A.
6

- B.
8

- C.
7

- D.
Data insufficient

- 2.Find the value of ( 0.75 * 0.75 * 0.75 - 0.001 ) / ( 0.75 * 0.75 - 0.075 + 0.01)
- A.
0.845

- B.
1.908

- C.
2.312

- D.
0.001

- 3.A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A.How many days will they take to do the work together ?
- A.
3 days

- B.
8/9 days

- C.
4 days

- D.
Can’t say

- 4.A car travels a certain distance taking 7 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 5 hrs.What is the distance travelled
- A.
210 kms

- B.
30 kms

- C.
20 kms

- D.
None of these

- 5.If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?
- A.
13 km/hr

- B.
26 km/hr

- C.
34 km/hr

- D.
None of these

- 6.If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.
- A.
40%

- B.
55%

- C.
35%

- D.
30%

- 7.In simple interest what sum amounts of Rs.1120/- in 4 years and Rs.1200/- in 5 years ?
- A.
Rs. 500

- B.
Rs. 600

- C.
Rs. 800

- D.
Rs. 900

- 8.If a sum of money compound annually amounts of thrice itself in 3 years. In how many years will it become 9 times itself.
- A.
6

- B.
8

- C.
10

- D.
12

- 9.A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?
- A.
110 men

- B.
130 men

- C.
100 men

- D.
None of these

- 10.Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him. What is the length of faster train ?
- A.
100m

- B.
75m

- C.
120m

- D.
50m

- 11.X% of y is y% of ?
- A.
X/y

- B.
2y

- C.
X

- D.
Can’t be determined

- 12.The price of sugar increases by 20%, by what % should a housewife reduce the consumption of sugar so that expenditure on sugar can be same as before ?
- A.
15%

- B.
16.66%

- C.
12%

- D.
9%

- 13.How many mashes are there in 1 squrare meter of wire gauge if each mesh is 8mm long and 5mm wide ?
- A.
2500

- B.
25000

- C.
250

- D.
250000

- 14.A man spends half of his salary on household expenses, 1/4th for rent, 1/5th for travel expenses, the man deposits the rest in a bank. If his monthly deposits in the bank amount 50, what is his monthly salary ?
- A.
Rs.500

- B.
Rs.1500

- C.
Rs.1000

- D.
Rs. 900

- 15.15 men take 21 days of 8 hrs. each to do a piece of work. How many days of 6hrs. each would it take for 21 women if 3 women do as much work as 2 men?
- A.
30

- B.
20

- C.
19

- D.
29

- 16.A cylinder is 6 cms in diameter and 6 cms in height. If spheres of the same size are made from the material obtained, what is the diameter of each sphere?
- A.
5 cms

- B.
2 cms

- C.
3 cms

- D.
4 cms

- 17.A rectangular plank (2)1/2 meters wide can be placed so that it is on either side of the diagonal of a square shown below. (Figure is not available)What is the area of the plank?
- A.
79/36

- B.
45

- C.
7*(2)1/2

- D.
None of these

- 18.The difference b/w the compound interest payble half yearly and the simple interest on a certain sum lent out at 10% p.a for 1 year is Rs 25. What is the sum?
- A.
Rs. 15000

- B.
Rs. 12000

- C.
Rs. 10000

- D.
None of these

- 19.What is the smallest number by which 2880 must be divided in order to make it into a perfect square ?
- A.
3

- B.
4

- C.
5

- D.
6

- 20.A father is 30 years older than his son however he will be only thrice as old as the son after 5 years what is father’s present age ?
- A.
40 yrs

- B.
30 yrs

- C.
50 yrs

- D.
None of these