Question

A two digit number in such that product of the digits is 14 the number obtained by interchanging the digit is 45 less than the original number find the original number

Answer 1

Let the no be 10 x +y

ATQ

X*Y=14 or x=14/y

And 10y+x =10x +y -45

Substituting x=14/y

We get x =7 and y =2

Therfore the no is 72

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