Solve this Simple Math Puzzle

This is a very Simple Math Puzzle for Kids. This missing number puzzle needs to be solved as quickly as possible. In this simple picture puzzle, there are some numbers which relate to each other. Study the pattern of these numbers carefully to find out the value of the missing number.

Can you solve this Simple Math Puzzle?

Answer of this "Simple Math Puzzle", can be viewed by clicking on the answer button.

The Answer is 20.
For each row, the number in the second column is double the number in the first column.
Similar for each row, the number in the 3rd column is double of the number in the 2nd column.

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