exam Maths Puzzle Numerical Ability

Solve 7x+8=x+20

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exam Other Question

if two number cubes are rolled 100 times

An even number appeared on at least one cube 76 times
The body mass index is a measure of the risk of heart disease. It is given by the following formula:
I=704.5W over H to the second power
Where W=weight in Lbs. and H = height in