Multiple choice

Directions: Complete the following analogy.

21 : 40 : : 63 : ?

  1. 110

  2. 143

  3. 90

  4. 72

  5. 81
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pattern of the given analogy is as follows: 21 = 3 x 7 40 = 5 x 8 63 = 7 x 9

Similarly, the next term is 9 x 10 = 90.

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