In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

Options

A. 7
B. `-12`
C. 12
D. 9

Answer

B

Explanation

The pattern followed here is,
`2 xx 3 xx 5 = 30`,
`5 xx 1 xx -1 = -5`,
`4 xx 3 xx -1 = -12`
(i.e all the 3 numbers are multiplied)
Hence, option B is the correct answer.