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CBSE Class 8 Answered

Given that 45 is the differnce between a number and that formed by reversing its digit . If the sum of the digits of the numbers is 13, then find the number.
Asked by Prahladpanda31 | 15 May, 2019, 05:47: PM
answered-by-expert Expert Answer
 
 
Let the unit digit be x then the tens digit will be (13 - x).
 
Accordind to the condition in the question, we get
 
[10(13 - x) + x] - (10x + 13 - x) = 45
→ 130 - 10x + x - 9x - 13 = 45
→  -18x = - 72
→       x = 4
 
Two digit number = 10(13 - x) + x = 10(13 - 4) + 4 = 94
 
Answered by Yasmeen Khan | 16 May, 2019, 09:26: AM

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