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Olympiad Test: Achieves Section-2


10 Questions MCQ Test Mathematical Olympiad Class 8 | Olympiad Test: Achieves Section-2


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Attempt Olympiad Test: Achieves Section-2 | 10 questions in 20 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study Mathematical Olympiad Class 8 for Class 8 Exam | Download free PDF with solutions
QUESTION: 1

What is the value of 

Solution:

QUESTION: 2

9x2 + 25 - 30x is the square of

Solution:

9x2 + 25 - 30x
= (3x)2 + (5)2 - 2 (3x) (5)
= (3x - 5)2

QUESTION: 3

One of the factor of x2 + 17x + 60 is

Solution:

 x2 + 17x + 60
=x2 +5x +12x + 60
=x(x+5) +12(x+5)
=(x+5) + (x+12)

QUESTION: 4

The perimeter of a rectangle is 54 cm. If its width is 2 cm more than one-fourth of its length. What is its length?
Solution:

Let the length be x.

QUESTION: 5

One of the letters from the word SOCIOLOGY is chosen at random. What is the probability that this letter is O? 
Solution:

Total number of letters = 9
Number of letter ‘O’ = 3
Required probability 

QUESTION: 6

What is the value of 
Solution:

QUESTION: 7

The product of two numbers is 1575 and their quotient is 9/7. What is the difference of the numbers?
Solution:

Let the numbers be x and y. 

QUESTION: 8

The diagonal of a square is  What is its perimeter?
Solution:


QUESTION: 9

What is the simplified value of  
Solution:


QUESTION: 10

A well with internal diameter 8m is dug 7m deep. The earth taken out of it is spread at around to a width of 2 m to form an embankment. The height of embankment will be :
Solution:

Volume of earth dug out

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