1.
What will come in place of question mark (?) in the following number series ?9, 19, 39, 79, ??
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By: anil on 05 May 2019 01.26 am
Each term of the number series is one more than double the previous number. For example, 19 = 2*9 + 1
39 = 2*19 + 1
79 = 2*39 + 1 So, the number to come next is 2*79 + 1 = 159
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39 = 2*19 + 1
79 = 2*39 + 1 So, the number to come next is 2*79 + 1 = 159