# Olympiad Test: Mathematical Reasoning - 2

## 20 Questions MCQ Test National Cyber Olympiad Class 8 | Olympiad Test: Mathematical Reasoning - 2

Description
Attempt Olympiad Test: Mathematical Reasoning - 2 | 20 questions in 40 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study National Cyber Olympiad Class 8 for Class 8 Exam | Download free PDF with solutions
QUESTION: 1

Solution:
QUESTION: 2

Solution:
QUESTION: 3

### In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2:3, then what percent of the population is literate ?

Solution:
QUESTION: 4

The statement “If x is divisible by 8, then it is divisible by 6” is false if x equals

Solution:
QUESTION: 5

In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art

Solution:
QUESTION: 6

What is true about the statement “If two angles are right angles, the angles have equal measure” and its converse “If two angles have equal measure, then the two angles are right angles”?

Solution:
QUESTION: 7

Mary says “The number I am thinking is divisible by 2 or it is divisible by 3”. This statement is false if the number Mary is thinking of is

Solution:
QUESTION: 8

Which of the following is the converse of the statement: “If x > 4, then x + 2 > 5”?

Solution:
QUESTION: 9

The statement “x > 5 or x < 3” is true if x equals

Solution:
QUESTION: 10

Consider the sentence: x < 5
Which of the following integers makes this open sentence true?

Solution:
QUESTION: 11

The total of the ages of Amar, Akbar and Anthony is 80 years. What was the total of their ages three years ago?

Solution:
QUESTION: 12

What is the product of all the numbers in the dial of a telephone?

Solution:
QUESTION: 13

If you write down all the numbers from 1 to 100, then how many times do you write 3?

Solution:
QUESTION: 14

A pineapple costs ₹ 7 each. A watermelon costs ₹ 5 each. X spends ₹ 38 on these fruits. The number of pineapples purchased is

Solution:
QUESTION: 15

Between two book ends in your study are displayed your five favourite puzzle books. If you decide to arrange the five books in every possible combination and move just one book every minute, how long would it take you?

Solution:
QUESTION: 16

There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there?

Solution:
QUESTION: 17

When Rahul was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Rahul’s brother is 6 years older than him and his mother is 3 years younger than his father, how old was Rahul’s sister when he was born?

Solution:
QUESTION: 18

A man wears socks of two colours - black and brown. He has altogether 20 black socks and 20 brown socks in a drawer. Supposing he has to take out the socks in the dark, how many must he take out to be sure that he has a matching pair?

Solution:
QUESTION: 19

The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class?

Solution:
QUESTION: 20

A shepherd had 17 sheep. All but nine died. How many was he left with?

Solution:
 Use Code STAYHOME200 and get INR 200 additional OFF Use Coupon Code