`{:(6,7,5),(7,8,6),(underline(8),underline(9),underline(?)),(62,79,47):}`

Options

A. 4
B. 7
C. 8
D. 9

Answer

B

Explanation

`7 xx 8 + 6 = 56 + 6 = 62`
`8 xx 9 + 7 = 72 + 7 = 79`
`6 xx ? + 5 = 47`
`rArr 6 xx ? =47 - 5`
`:.? = (42)/(6) = 7`