100+ Maths IQ Questions with Answers Pdf - 1

Questions : 1

What number should replace the question mark?

Ans: 6

The number in the first triangle is arrived at by adding the numbers at the top. ie 6 + 3 + 8 = 17.
Similarly, 7 + 8 + 9 = 24, and
2 + 3 +1 = 6.

Questions : 2

What number should logically replace the question mark?

Ans: 67

Each number is obtained by adding together the digits of the previous number to the previous number. 67 = 56 + 5+ 6.

Questions : 3

Which number should appear of the bottom of this pile?

Ans: 42

As you go down, double the previous number and subtract 10.

Questions : 4

What is the difference between the sum of the two highest odd numbers and the product of the two lowest even numbers?

Ans: 24

27 + 21 = 48;
4 x 6 = 24;
48 – 24 = 24.

Questions : 5

What is the value of X?

Ans: 61

(7 x 9) – (3 x 4) + 10 = 61.

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