Question

2.
Hind the values of the following
reasons for
and
give
stepe involved.
4 A
--
+198
CB3​

Answer 1

12A+6AB=A0912A+6AB=A09

Here, we can see that , A+B=9→(1)A+B=9→(1)

2+A=0→(2)2+A=0→(2)

1+6=A→(3)1+6=A→(3)

From (2), we can see that possible values for AA is 88 or 77.

For AA to be 77, A+BA+B should be greater that 99 that is not possible from (1)(1).

So, value of AA is 88.

From (1), we can see that if AA = 88, then B=9−8=1B=9-8=1

So, A=8andB=1A=8andB=1