Number System
If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ?

95
103
92
99

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Number System
In a two-digit number, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:

26
46
42
24

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