Multiple choice

In the following question, select the missing number from the given series. $3, 10, 24, 52, 108, ?$

  1. $180$
  2. $190$
  3. $210$
  4. $220$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern follows a doubling difference: 3(+7)=10, 10(+14)=24, 24(+28)=52, 52(+56)=108. The added number doubles each time (7, 14, 28, 56). The next addition should be 56×2=112, so 108+112=220.

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