Magic of missing number

Level 1

25 , 5 , 625 , 16 , 4 , ? \large 25, 5, 625, 16, 4, ?


The answer is 256.

Abhishek Yadav by Abhishek Yadav , 24, India

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2 solutions

Chew-Seong Cheong
Dec 13, 2016

The logic is:

25 , 5 , 625 , 16 , 4 , ? 5 2 , 5 1 , 5 4 , 4 2 , 4 1 , 4 4 25 , 5 , 625 , 16 , 4 , 256 \begin{array} {rrrrrr} 25,& 5, & 625, &16, & 4, & \boxed{ \ \ ? \ \ } \\ 5^{\color{#3D99F6}2}, & 5^{\color{#D61F06}1}, & 5^{\color{#20A900}4}, & 4^{\color{#3D99F6}2}, & 4^{\color{#D61F06}1}, & \boxed{\ 4^{\color{#20A900}4} \ } \\ 25,& 5, & 625, &16, & 4, & \boxed{256} \end{array}

1 Helpful 0 Interesting 0 Brilliant 0 Confused

5^2,5,25^2,4^2,4,16^2=256

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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