In a two-digit number, the first digit is 5 less than the second digit. The number itself is three times the sum of its digits. What is the number?
Answers
Answer:
27
Step-by-step explanation: THIS MAY SEEM LONG BUT TAKE A DEEP BREATH & CHILL IT'S SUPER SIMPLE
taking the second digit as 'x'
as per question the first digit is 'x-5'
therefore putting this in the one, tens, hundreds form
u multiply the first digit by 10 and the second by 1
therefore,
10(x-5) + 1(x)
now you have that the 2-digit number is equal to twice the sum of the digits,
so
10(x-5) + 1(x) = 3 [ (x-5) + (x) ]
on solving
10x - 50 + x = 3 (2x - 5)
11x -50 = 6x - 15
taking 6x on the right and -50 on the left
11x - 6x = 50 - 15
5x = 35
therefore x = 7
now substituting this value we get that the number is
27
yay!!!
P.S.
This is my first answer.
Answer:
First digit is 2
Second digit is 7
Sum of both digits: 2+7=9
Three times the sum:3*9=27
The number is 27
Step-by-step explanation: