Question

the sum of the digits of a 2 is 7. on reversing it's digits, the new number is 45 less than the original number . find the number

Answer 1

Answer:

sum = 7

difference = 45/9 = 5

x+y= 7

x-y = 5

x= 6, y = 1

number is = 16 (Ans.)

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