Question

In a two digit number, digit in units place is thrice the digit in tens place. If 54 is added to the original number, the digits are reversed. Find the number *

Answer 1

Answer:

39

Step-by-step explanation:

let the tens place digit be x,

then, the unit place digit is 3x.

now, original no. = 10(x)+3x

= 10x+3x = 13x

reversed no. = 10(3x)+x = 31x

According to question,

13x +54 = 31 x

54 = 31x - 13x

54 = 18x

x = 3

no. is 13x or 13 *3 =39