What should come in place of the question mark (?) in the given series?
601, 600, 597, 592, 585, ?

Given Series: 601, 600, 597, 592, 585, ?

Logic: Subtracting consecutive odd numbers (-1, -3, -5, -7, -9).

601 - 1 = 600

600 - 3 = 597

597 - 5 = 592

592 - 7 = 585

Similarly,

585 - 9 = 576

Thus, correct option is (a).