4. One of the two digits of a two digit number is three times the othe

1.	4. One of the two digits of a two digit number is three times the other digit. If you interchangethe digits of this two-digit number and add the resulting number to the original number, you get88. What is the original number?Sohil nge five vears from now
Answer» Let the digit in units place = xThe digit in tens place = 3xThe number is 10(3x) + x = 31x Digits are interchangedDigit in units place = 3xDigit in tens place = x The new number= 10(x) + 3x = 13x Sum of these two numbers = 88 31x + 13x = 88 44x = 88 x = 2 3x = 6 The originalnumber is 62

4. One of the two digits of a two digit number is three times the other digit. If you interchangethe digits of this two-digit number and add the resulting number to the original number, you get88. What is the original number?Sohil nge five vears from now

Answer»

Let the digit in units place = xThe digit in tens place = 3xThe number is 10(3x) + x = 31x

Digits are interchangedDigit in units place = 3xDigit in tens place = x

The new number= 10(x) + 3x = 13x

Sum of these two numbers = 88

31x + 13x = 88

44x = 88

x = 2

3x = 6

The originalnumber is 62