What will come in place of the question mark (?) in the following series?
200, 183, 167, 152, 138, ?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 125
The series falls by uneven steps, so look at the difference between each pair of terms. The drops become one smaller each time:
\(200-183=17\)
\(183-167=16\)
\(167-152=15\)
\(152-138=14\)
The next drop is 13, so the missing term is \(138-13=125\).