exam Maths Puzzle Numerical Ability

Simplify the expression.
3y^2 + 5yz + 2z^2
-----------------
2y^2 + 3yz + z^2

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exam Other Question

Find the volume of 5" x 10" x 50" = The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 23 minutes requires 4.6 gallons of water. Find the amount of water used in a shower lasting 4 minutes.