What should come in place of the question mark (?) in the given series? 650 660 669 677 684 ?A686B688C692D690Answer: D. 690 Read Explanation: Series: 650, 660, 669, 677, 684, ?Step 1: Find the differencesNumbersDifference650 → 660+10660 → 669+9669 → 677+8677 → 684+7The pattern is decreasing by 1:+10, +9, +8, +7, +6Step 2: Add the next difference684 + 6 = 690Answer: 690 Read more in App