Question

A number cnsists of two digits whose sum is 12. If 36 is added to it, the digits are reversed. what is the number?​

Answer 1

84

Sum = 8 + 4 = 12

Add 36 = 36 + 12 = 48

Easy Method:

36 + 12 = 48

The no. 48 is the reverse of the original No.

Therefore, 84 is the no.