What should come in place of the question mark (?) in the given series?
781 791 800 808 815 ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 821.
Given series: 781 791 800 808 815 ?
781 + 10 = 791, 791 + 9 = 800, 800 + 8 = 808, 808 + 7 = 815, 815 + 6 = 821