18. When you add two numbers and the number obtained by reversing the order of its digits is 165. If the both numbers differ by three, find the number.
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let the number be xy. (10x+ y)
10x + y + 10y+ x= 165
11x × 11y = 165
x + y =15
x-y = 3
2x= 18
x = 9
y = 6
required number be 96.
10x + y + 10y+ x= 165
11x × 11y = 165
x + y =15
x-y = 3
2x= 18
x = 9
y = 6
required number be 96.
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