In the following question, select the odd number group from the given alternatives :

Options

A. (a) `(4, 16, 48)`
B. (b) `(6, 36, 90)`
C. (c) `(8, 64, 160) `
D. (d) `(12, 144, 360) `

Answer

A

Explanation

Except in the number group (4,16,48), in all other numer groups, the second number is the perfect square of the first number while the third number is two and half times of the second number.
`(6,36,90)`
`implies 6 xx 6 = 36 and 36 xx 2. 5 = 90 `
`(8,64,160)`
`implies 8xx8 = 64 and 64 xx 2. 5 = 160`
`(12,144,360)`
`implies 12 xx 12 = 144 and 144 xx 2. 5 = 360`
But, `implies 4 xx 4 = 16 and 16 xx 3 = 48`