Question

A number consists of two digits.the digit at the ones place is 3 times the digit at the tens place If 36 is added to a number,the digit are reversed .Find the number

Answer 1

Answer:

The number is 26.

Step-by-step explanation:

let the digit at ten's place be x and the digit at one's place by y.

The number is 10x+y

condition 1) y=3x........................(1) condition 2)10x+y+36=10y+x.....(2)

putting y=3x in eq.2

10x+3x+36=(10*3x)+x

13x+36=30x+x

36=31x-13x

36=18x

x=36/18

x=2.......... answer 1

y=3x=3*2=6

no.=10x+y

=(10*2)+6

=20+6

no.=26