Question
5 6 15 40 89 170
? Find the missing number in the following number series:Solution
5 + 12 = 6 6 + 32 = 15 15 + 52 = 40 40 + 72 = 89 89 + 92 = 170 170 + 112 = 291
Compute: 1112 ÷ 139 ̶ 5
Select the option that is related to the third number in the same way as the second number is related to the first number.
12 : 60 :: 16 : ?
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