Instructions

What should come in place of the question mark (?) in the following number series ?

Question 100

729, 243, 81, 27, ?

Solution

Each of the number given in the series is 1/3rd the previous number.

For example, 729 = 3*243
243 = 3*81
81 = 3*27
27 = 3*9

Hence, the term to come next is 9

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