Question

in two digit number ,the sum of digits is 15 . if 9 is added to the number , the digit are interchanged. the number is---​

Answer 1

Answer:

The number is 78

Step-by-step explanation

Solution:

Let the number be XY, then the reversed number is YX

X + Y = 15 (Given)

According to the condition,

10X + Y + 9 = 10Y + X

which gives, X + 1 = Y

Solving for X & Y:

We get X = 7 & Y = 8

Hence, the number is 78 ✌️

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