In each of the following questions selec...

In each of the following questions select the missing number from the given responses.
`{:(7,6,6),(8,6,?),(3,4,5),(168,144,120):}`

A

8

B

10

C

5

D

4

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The correct Answer is:

D

First column
`7xx8xx3=168`
Second column
`6xx6+4=144`
Third column
`6xx?xx5=120`
`rArr?=(120)/(30)=4`

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