+1000 Maths Puzzle Questions with Answers - 1

Questions : 1

Which number should replace the question mark?

Ans: 28

(7 x 4) + 6 = 34
(9 x 1) + 7 = 16
(8 x 3) + 9 = 33
(6 x 4) + 4 = 28.

Questions : 2

What number should replace the question mark?

Ans: 41

The sequence progresses +1, +2, +4, +8, +16, +32.

Questions : 3

What number should replace the question mark?

Ans: 148

The sequence progresses x 3 + 1 at each stage.

Questions : 4

Which two numbers are the odd ones out?

Ans: 23 and 8526

The remaining numbers are in pairs where the sum of the digits of each four figure number equals one of the two figure numbers, e.g. 9312 ( 9 + 3 + 1 + 2 = 15). The other pairs are 6829/25, 1573/16, 7415/17 and 9787/31.

Questions : 5

What number should replace the question mark?

Ans: 27

In the first row divide every number by 7 to obtain the digits in the brackets;
In the second row divide by 8, and
In the third row divide by 9.

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