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If 4**2=3 and 8**4=3, then 21**7=?...

If `4**2=3` and `8**4=3`, then `21**7=?`

A

4

B

3

C

8

D

16

Text Solution

Verified by Experts

The correct Answer is:
A
`4**22=3 rArr (4)/(2)+1=3`
`8**4=3 rArr (8)/(4)+1=3`
Therefore,
`21*7=? rArr (21)/(7)+1=4`
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