1000+ Mathematical Puzzle Questions - 1

Ans: B

This is an alternating addition and subtraction series, in which the addition of 4 is alternated with the subtraction of 3.

Ans: A

This is an alternating addition series with repetition, in which a random number, 66 is interpolated as every third number. The regular series adds 2, then 3, then 2 and so on, with 66 repeated after each ‘add 2’ step.

Ans: A

This is an alternating repetition series. The number 32 alternates with a series in which each number decreases by 2.

Ans: A

In this alternating repetition series, a random number, 33 is interpolated every third number into a simple addition series, in which each number increases by 2.

Ans: E

This is a simple subtraction series, in which 3 is subtracted from each number to arrive at the next.