# find __Missing Number__ from Series of given numbers

A simple training tool to practice on missing numbers

### Missing Number In A Sequence

## Missing Numbers: A Shopkeeper ExampleDay1: A shopkeeper Mr.Alexander sells his product and he gets 10 dollar profit. Day2: A shopkeeper Mr.Alexander sells his product and he gets 20 dollar profit. Day4: A shopkeeper Mr.Alexander sells his product and he gets 40 dollar profit. How much profit Mr.Alexander gets on day3?. Answer is 30 dollar (10,20, |