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If 13 L 4 A 7 = 41 and 14 A 3L 12 = 54, ...

If `13 L 4 A 7 = 41` and `14 A 3L 12 = 54`, then `12 L 3 A9 = ?`

A

84

B

39

C

42

D

56

Text Solution

Verified by Experts

The correct Answer is:
B
`13 L 4 A 7 =41`
`implies13+4xx7=41`
`implies13+28=41`
Thus, .L. denotes .+. and .A. denotes `.xx.`.
`14 A 3 L 12 =54`
`implies14xx3+12=54`
`implies42+12=54`
Therefore,
`12 L 3 A 9=?`
`implies? =12 +3xx9`
`implies?=12+27=39`
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