Question 21

If 5 # 3 @ 3 = 12 and 7 # 2 @ 4 = 10, then what will be 2 # 9 @ 5?

Solution

5 # 3 @ 3 = 12 and 7 # 2 @ 4 = 10

here # is multiplication and @ is substraction

5 * 3 - 3 = 12

7 * 2 - 4 = 10

so,

2 # 9 @ 5 = 2 * 9 - 5 =13

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