MATHLETICS: Finding a Missing Number in a Sequence Calculation

find Missing Number from Series of given numbers

A simple training tool to practice on missing numbers

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Missing Number In A Sequence

Missing Numbers: A Shopkeeper Example

Day1: 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 (10,20,30,40)

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