Instructions

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

Question 159

982, 977, 952, 827, 822, ?

Solution

The pattern here followed is :

982 - $$5^1$$ = 977

977 - $$5^2$$ = 952

952 - $$5^3$$ = 827

827 - $$5^1$$ = 822

822 - $$5^2$$ = 797

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