Question

Q.24
+2.0,-0.0
A number consists of two digits whose
sum is 9. If 27 is subtracted from the
number, its digits get reversed. The
number is​

Answer 1

Step-by-step explanation:

x + y = sum … (1)

10 * x + y = 10 * y + x + difference

9 * x - 9 * y = difference

9 * (x - y) = difference

x - y = difference / 9 … (2)

Putting values we get

x + y = 9 … (1)

x - y = 27 / 9 = 3 … (2)

Solving (1) and (2)

we get x = 6 and y = 3

Therefore the numbers are 63 and 36