Question

In the following number series, a wrong number is given. Find out that wrong number.

16 4 2 1.5 1.75 1.875

 (a) 1.875 (b) 1.75 (c) 1.5 (d) 2 (e) 4

Answer 1

(b) The series is based on the following pattern:
16 × 0.25 = 4
4 × 0.50 = 2
2 × 0.75 = 1.5
1.5 × 1.00 = 1.5 ; not 1.75
1.5 × 1.25 = 1.875
Clearly, 1.75 should be replaced by 1.5.