Question

in a two digit number, the unit digit is 4 times the tens digit and the sum of the digits is 10. find the number.

Answer 1

Answer is 28

Let the tens digit be x and units digit be y
therefore the digit is xy

Unit digit is 4 times the tens digit
therefore y = 4x
4x - y = 0

The sum of both the digits is 10
Hence x + y = 10

Calculating (Adding) both the equations
5x = 10
x = 2

Solving the above (any one) equation, we get
y = 8

therefore the number is 28.

Answer 2

Answer:

28

Step-by-step explanation:

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