Question

If the addition of numbers 2A and 33 gives 5B, where A and B are digits then find A and B. Given that number 2A is divisible by 10.

Answer 1

Since 2A is divisible by 10, number 2A should have 0 as the last digit. So, A = 0.
Now 2A becomes 20 and 20+33=53
Hence, 5B = 53 and B=3