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If 6 # 30=5, 8# 24=3, 7 # 28=4, then wha...

If `6 # 30=5, 8# 24=3, 7 # 28=4,` then what is the value of `8# 40=?`

A

47

B

4

C

5

D

24

Text Solution

Verified by Experts

The correct Answer is:
C
`6 # 30=5`
`rArr (30)/(6)=5`
`8 # 24`
`rArr (24)/(8)=3`
`7 # 28`
`rArr (28)/(7)=4`
Therefore, `8 # 40`
`rArr (40)/(8) =5`
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