Find out the wrong number in the sequence:
40960, 10240, 2560, 640, 200, 40, 10
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 200
Each number is one-fourth of the number before it:
40960 ÷ 4 = 10240, 10240 ÷ 4 = 2560, 2560 ÷ 4 = 640
640 ÷ 4 = 160, but the series shows 200
160 ÷ 4 = 40 and 40 ÷ 4 = 10, which fit the rest of the series
So 200 is the wrong number; it should be 160.