Q.1 |
The solution of which of the following equations is a fraction not an integer? |
a) |
3x + 2 = 5x + 2 |
b) | 4x - 18 = 2 |
c) | 4x - 7 = x + 2 |
d) | 5x - 9 = x + 4 |
Q.2 |
Which is the smallest square number that is divisible by each of the number 4, 9 and10? |
a) |
900 |
b) | 810 |
c) | 800 |
d) | 920 |
Q.3 |
Expansion of (x + 3y)(x - y) gives: |
a) |
x² + 2xy - 3y² |
b) | x + 3y - 2xy |
c) | 2y + 3x |
d) | 3y - 42x |
Q.4 |
A solid cube of each side 8 cm, has been painted red, blue and black on pairs of opposite faces. It is then cut into cubical blocks of each side 2 cm. How many cubes have only two faces painted? ![]() |
a) |
24 |
b) | 2 |
c) | 22 |
d) | 12 |
Q.5 |
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.6 |
Which of the following is a factor of xy + x - y -1? |
a) |
x + 1 |
b) | y + 1 |
c) | x + y |
d) | x - y |
Q.7 |
Factorise 49x² – 36. |
a) |
(7x + 6) (7x - 6) |
b) | (7x + 6) 7x - 6 |
c) | 7x + 6 X 7x - 6 |
d) | None of these |
Q.8 |
The length of the arc of a sector of a circle is 17 cm and the area of the sector is 136 cm2. Calculate the radius of the circle. |
a) |
16 cm |
b) | 15 cm |
c) | 14 cm |
d) | 13 cm |
Q.9 |
Select the figure which satisfies the same conditions of placement of the dots as in fig. (X). |
a) | a |
b) | b |
c) | c |
d) | d |
Q.10 |
Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and the time if both are numerically equal. |
a) |
64% and 64 |
b) | 8% and 8 |
c) | 12% and 12 |
d) | 8.2% and 8.2 |
Your Score: 0/10
Sample PDF of Unified Council - Unified International Mathematics Olympiad (UIMO) PDF Sample Papers for Class 8:
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Answers to Sample Questions from Olympiad Success:
Q.1 : d | Q.2 : a | Q.3 : a | Q.4 : a | Q.5 : d | Q.6 : b | Q.7 : a | Q.8 : a | Q.9 : a | Q.10 : b