Q.1 |
Which of the following statements is always true: |
a) | A square number cannot be the sum of two other square numbers |
b) | A number that has 5 in the units place can never be a perfect square |
c) | A number that leaves a remainder of 3 when divided by 4 cannot be a perfect square |
d) | A number that has 7 in the units place may be a perfect square |
Q.2 |
The ascending order of a = 0.025, b = 0.0035, c = 0.134 and d = 0.287 is: |
a) |
a, b, c, d |
b) | b, a, c, d |
c) | b, c, d, a |
d) | c, a, b, d |
Q.3 |
What is the mean of all the odd numbers greater than 10 and less than 30? |
a) |
18.5 |
b) | 19 |
c) | 19.5 |
d) | 20 |
Q.4 |
Mani bought two horses at Rs. 20000 each. He sold one horse at 15% gain. But he had to sell the second horse at a loss. If he had suffered a loss of Rs. 1800 on the transaction, find the selling price of the second price. |
a) |
Rs. 12490 |
b) | Rs. 13690 |
c) | Rs. 14560 |
d) | Rs. 15200 |
Q.5 |
In equation 9x - 12k = 0. For x = 4, value of k is: |
a) |
6 |
b) | 5 |
c) | 3 |
d) | 8 |
Q.6 |
Raju has travelled for 4 h at 60 kmph and 6 h at 40 kmph. What is the average speed of Raju for the entire journey (in kmph)? |
a) |
56 |
b) | 50 |
c) | 48 |
d) | 45 |
Q.7 |
If 33x - 2 = 92x - 2, then what is the value of (xx)x? |
a) |
1 |
b) | 2 |
c) | 4 |
d) | 16 |
Q.8 |
Factorise 49x² – 36. |
a) |
(7x + 6) (7x - 6) |
b) | (7x + 6) 7x - 6 |
c) | 7x + 6 X 7x - 6 |
d) | None of these |
Q.9 |
Expansion of -8(3a + 5b) yields: |
a) |
-24a - 40b |
b) | -22a + 80b |
c) | 20a - 30b |
d) | -24a - 41b |
Q.10 |
If a, b, c, d stands for addition, subtraction, multiplication and division respectively then, the value of 12 d 4 c 7 a 24 b 11 is: |
a) |
34 |
b) | 6 |
c) | 21 |
d) | 45 |
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Answers to Sample Questions from Olympiad Success:
Q.1 : c | Q.2 : b | Q.3 : d | Q.4 : d | Q.5 : c | Q.6 : c | Q.7 : d | Q.8 : a | Q.9 : a | Q.10 : a