Multiple choice

Directions: Choose the correct alternative and complete the series.

563, 647, 479, 815, (….)

  1. 143

  2. 386

  3. 279

  4. 672
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern is +84, - 168, +336,…..i.e. +84, - (84 × 2), + (84 + 22)……. The missing number is 815 - (84 × 23) = 815 - 672 = 143

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