Question

Q9. The sum of the digits of two digit number is 7. If the number formed by reversing the digits

is less than the original number by 27, find the original number.​

Answer 1

Answer:

52

Step-by-step explanation:

let the no be 10x+y

by hidden trial(satisfying connection 1)

7=4+3;7=5+2:7=6+1

(satisfying connection 2)

43-34;27

9;27

rhs not= lhs

hence 431 is wrong

61-16;27

45;27

rhs not= lhs

hence 61 is wrong

52-25;27

27;27

rhs = lhs

hence 52 is right