the sum of two digit number and the number obtained by reversing the digit is 121 the digit at tens place is 7 more than the digit at unit place find the number.
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Answered by
10
Answer:
Thus Number=92
Step-by-step explanation:
Let the digit at unit place=x
then at 10's place=x+7
Then No N =10(x+7)+x=11x+70
Now the number formed by reversing didits
N'=10x+(x+7)=11x+7
Given that
N+N'=121
11x+70+11x+7=121
22x=121-77=44
x=2
So Unit digits=2
10's digits=2+7=9
Thus Number=92
Answered by
5
Hope this will help you.
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