Question 33

In the following question, select the missing number from the given series.
6578, 4381, 2653, ?, 322

Solution

Cubes of consecutive integers are subtracted in decreasing order.

6578 $$-(13)^3$$ = 4381

4381 $$-(12)^3$$ = 2653

2653 $$-(11)^3$$ = 1322

1322 $$-(10)^3$$ = 322

=> Ans - (A)

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