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If 9&4 = 50, 3&7 = -40 and 7&5 = 20, the...

If 9&4 = 50, 3&7 = -40 and 7&5 = 20, then find the value of 4&5 = ?

A

80

B

-10

C

20

D

-80

Text Solution

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The correct Answer is:
B
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