What should come in place of the question mark (?) in the given series?
57 43 31 21 13 ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 7.
57 - 14 = 43; 43 - 12 = 31; 31 - 10 = 21; 21 - 8 = 13; 13 - 6 = 7
SSC CHSL 2023 - 02 Aug 2023 - Shift 2 • Reasoning • Q94
What should come in place of the question mark (?) in the given series?
57 43 31 21 13 ?
Correct answer: D
Explanation
The correct answer is option 4 i.e. 7.
57 - 14 = 43; 43 - 12 = 31; 31 - 10 = 21; 21 - 8 = 13; 13 - 6 = 7