Question

Question 13

In the given question, out of four options, only one is correct. Write the correct answer.

If 5A + B3 = 65, then the values of A and B is
(a) A = 2, B = 3
(b) A = 3, B = 2
(c) A = 2, B = 1
(d) A = 1, B = 2

Answer 1

We have, $\frac{5A+B3}{65}$
Evidently, A + 3 is a number taking values from 3 to 12, So, either A + 3 is 5 or it is a two digit number whose unit digitis is 5. But, A + 3 is less than or equal to 12.
$\therefore$ A + 3 = 5 $\Rightarrow$ A = 2
In the tens column, we have 5 + B = 6 $\Rightarrow$ B = 1
Hence, A = 2 and B = 1