Souta Souta
  • 17-06-2024
  • SAT
High School

Find the missing number in the series:

7, 4, 5, 9, 20, ?

A) 48.5
B) 49.5
C) 52.5
D) 46.5

Answer :

luluJ33 luluJ33
  • 01-01-2025

Hello!

the logic behind the series is:

  • (7 * 0.5) + 0.5 = 4
  • (4 * 1) + 1 = 5
  • (5 * 1.5) + 1.5 = 9
  • (9 * 2) + 2 = 20
  • (20 * 2.5) + 2.5 = 52.5
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