Question

If dividing the 3 digit number "3BA" by 10 gives 34 without leaving any remainder, the values of B and A are:

• A. B = 4
• B. B = 3
• C. A = 5
• D. A = 0

Answer 1

Answer: (A), (D)

A = 0

Given: $\frac{3BA}{10}=34$
Since there is no remainder, 3BA is completely divisible by 10.
Now we know that all numbers exactly divisible by 10 will have 0 in the one's place.
$\Rightarrow$ A = 0
Now $\frac{3B0}{10}=34$

So, 3B = 34
$\Rightarrow$ B = 4

Therefore, the number is 340.