Question

sum of the no. of two digit no. is 12 the number obtained by interchanging the two digit exceed the given number by 18 find the number

Answer 1

hey mate

here answer :-

let no be x and y

eq 1) x+y = 12
eq2) x-y=18

after adding the both equation
then y is cancel

= 2x = 30
= x= 15

keep the value of x in any equation
then find out y
15+y = 30
then y = 15 also

I hope it may help u

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