exam Maths Puzzle Numerical Ability

y^5 - 3y^3 + 8y^2 / 5y

I factored it out as much as I could.

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exam Other Question

The following table shows the average number of drops it takes to break open a large nut from
varying heights.
Large Nuts
Height of drop (m) 1.7 2.0 2.9 4.1 5.6 6.3 7.0 8.0 10.0
Which is a perfect square?

1,945
1,000
351.56
730
169