Question

in a two digit number the digit in tens place is 4 times the digit in units place if the sum of the digit is 10 find the number

Answer 1

Let ten's place be x and unit's place be y
The number is 10x + y
A/Q,
y = 4x                        ...1
Also,
x+y = 10                     ...2
Substituting value of y in 2 we get,
x + 4x = 10
5x = 10
x = 2
Also,
y = 4 X 2
y = 8
The number is 28
This should be the answer I guess