Question

9. 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 the number, the digits are reversed. Find the number.​

Answer 1

Answer:

26

Step-by-step explanation:

Let the first digit be 3x

then the number is (10*x)+3x=13x

if digit are reversed then the number is (3x*10)+x=31x

now,

31x - 13x = 36

18x = 36

x = 2

since, the number is 13x = 13 × 2 = 26