Question

In a 2-digit number, the units digit is four times the tens digit and the sum of the
digits is 10. Find the number.

Answer 1

Answer:

hey!!

Step-by-step explanation:

question:- In a 2-digit number, the units digit is four times the tens digit and the sum of the

ATQ,

If x is the digit in the unit place and y is the digit in the ten’s place,

Then x = 4y and x+ y = 10 (given)

Substitute for x in the equation x + y = 10

4y + y = 10

5y = 10

y = 2

But x = 4y

Therefore x = 8

The number is 28

Answer 2

Step-by-step explanation:

let unit digit be x

and tens digit be y

x = 4y

x + y =10

4y + y = 10

5y = 10

y = 10/5

y = 2

tens digit = 2

unit digit = 4y = x = 8