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What comes next: 3, 7, 16, 35, 74, ?

A153

B156

C151

D152

Answer:

A. 153

Read Explanation:

Look at the pattern:

3, 7, 16, 35, 74, ?3,\ 7,\ 16,\ 35,\ 74,\ ?

Each term is obtained by:

Next term=(Previous term×2)+1, +2, +3, +4,\text{Next term} = (\text{Previous term} \times 2) + 1,\ +2,\ +3,\ +4,\ldots

Let's check:

  • (3×2+1=7)(3 \times 2 + 1 = 7)

  • (7×2+2=16)(7 \times 2 + 2 = 16)

  • (16×2+3=35)(16 \times 2 + 3 = 35)

  • (35×2+4=74)(35 \times 2 + 4 = 74)

So the next term is:

74×2+5=148+5=15374 \times 2 + 5 = 148 + 5 = 153

Answer: 153.


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