Question

If the difference of two digit number and number obtained by reversing the digits is 45 then write all possible 2 digit number

Answer 1

let unit digit =b and tens digit=10 a. . By reversing the digit we get 10b+ a. so, 10a +b -(10b+a)=45 》10a+b-10b-a =45. 9a-9b=45》 9 (a-b)=45 》a-b=5. then , let the number a=7 and b =2 .now the original number =10×2+7=20+7=27 now the reversed number =10×7+2=70+2=72.

Answer 2

Answer: 72

Step-by-step explanation:

let unit digit =b and tens digit=10 a. . By reversing the digit we get 10b+ a. so, 10a +b -(10b+a)=45 》10a+b-10b-a =45. 9a-9b=45》 9 (a-b)=45 》a-b=5. then , let the number a=7 and b =2 .now the original number =10×2+7=20+7=27 now the reversed number =10×7+2=70+2=72.