Question

In a
two digit number, the digit at
units place is equal to the square of the
digit at tens place. If 54 is added to
the number the digits gets interchanged.
find the number.
​

Answer 1

Answer:

let digits be x and y

Step-by-step explanation:

then y=x^2

then 10y+y^2+54=10y^2+y

-9y2+9y=-54

y^2-y=6

solving Quadratic equation

y=3

No=39