1.

What will come in place of question mark (?) in the following number series?100, 90, ?, 40, 0, - 501. 702. 803. 604. 755. 55

Answer» Correct Answer - Option 1 : 70

Given:

The number series:

100, 90, ?, 40, 0, - 50

Concept Used:

Number series following a fixed pattern.

Calculation;

The given number series follows the pattern:

100 – (10 × 1) = 90

90 – (10 × 2) = 70

70 – (10 × 3) = 40

40 – (10 × 4) = 0

0 – (10 × 5) = - 50

∴ The number in place of “?” in the given number series is 70



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