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The sum of two digit number and the number obtained by reversing the order of its digit is 165 is the digit differ by 3 find the number?

Posted by Pulkit Singh 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Tulsani 6 years, 11 months ago

Let unit digit no. Be X Let tens digiti no. Be Y Since the digits differ by 3 Therefore , x-y=3 .......(1) And let the original number is 10y + x Now, Number obtained by reversing this , 10x+y According to ques , 10y + x + 10x + y =165 11x + 11y = 165 x+y= 15........(2) Then , by eliminating (1) & (2) x=6 & y=3 So the number is 36 or 63

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CBSE > Class 10 > Mathematics