Find real questions from previous competitive exam papers with answers and solutions.
Which is the smallest 5-digit number that is divisible by each of 54, 120 and 96?
14260
12960
18280
17280
Correct answer
14260
Evaluate the given expression.
[(0.36)/(0.012 of 0.4)] × 0.5
15
0.18
5.45
37.5
Correct answer
15
In a seminar. the number of participants in music, physical education and fine arts are 216, 96 and 168, respectively. Find the minimum number of rooms required if each room has the same number of participants and no room has participants from more than one steam seated in it.
20
12
24
48
Correct answer
20
If the selling price of a toy is of its cost price, then the loss percent is _______.
16%
15%
25%
40%
Correct answer
16%
At what rate percent per annum will a sum of money become 5 times of itself in 8 years on simple interest?
30%
50%
20%
40%
Correct answer
30%
If V and S denote the volume and the total surface area of a cuboid (of sides a, b and c) respectively, then which of the following is true?
(1/V) = (2/S) (1/a + 1/b + 1/c)
0 = (2/S)(1/a + 1/b + 1/c)
(1/V) = (2/S)(1/a - 1/b - 1/c)
(1/V) = (1/S) (2 + 1/b + 1/c)
Correct answer
(1/V) = (2/S) (1/a + 1/b + 1/c)
If the HCF of x and 117 is expressible in the form 2x - 117, then which of the following options can be a value of x?
65
75
62
91
Correct answer
65
A book needs to be typed. A types it in 15 days. B types it in 12 days. C types in 20 days. D types in 8 days. If A and D work together as team VENUS, B and C work as team MERCURY, and A and C work as team MARS, which of these three teams will complete typing the book first?
MERCURY
VENUS
MARS
All teams take the same time
Correct answer
MERCURY
The weightage of 5 tests in a class and the marks scored by Ritu in those tests are as follows. What is the weighted average of the percentages she obtained in the five tests?
| Score/Max | Weightage |
|---|---|
| 12/20 | 15% |
| 16/20 | 12% |
| 40/50 | 30% |
| 80/100 | 10% |
| 14/20 | 33% |
65.4%
73.7%
82.4%
77.6%
Correct answer
65.4%
The volumes of three containers are in the ratio of 4 ∶ 5 ∶ 6. They are full of mixtures of petrol to kerosene in the ratios of (3 ∶1), (3 ∶ 2) and (5 ∶ 1), respectively. The entire quantities of these mixtures from all these three containers are poured into a fourth container. The ratio of petrol to kerosene in the fourth container is ______.
12 ∶ 5
11 ∶ 4
5 ∶ 2
3 ∶ 1
Correct answer
12 ∶ 5