Question

A number consists of two digits whose sum is five. When the digits are reversed, the number becomes greater by nine. Find the number.

Answer 1

Answer:23

Step-by-step explanation:

Let the number be 10x+y.

Reversed number=10y+x.

x+y=5. -------------------------------(1)

A.T.Q

10x+y+9=10y+x

9x+9=9y

x+1=y. ----------------------------(2)

Put the value of y in equ.1

x+1+x=5

2x=4

x=2

The number is 10*2+3

20+3

23

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