Question

In each series, only one number is wrong. Find out the wrong number.
157.5, 45, 15, 6, 3, 2, 1

Options

• 1

• 2

• 6

• 157.5

Answer 1

1
Explanation:                                                    2
157.5  45        15          6          3           2          1

  +3.5       +3        +2.5       +2     +1.5        +1
Hence, the number 1 is wrong and should be replaced by 2.