exam Maths Puzzle Numerical Ability

1+5/y-1=7/6

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(t+2)^3(t^2+2t+1)(t+1) over (t+1)(t^2+4t+4)(t+2)

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A ball is thrown upward from a roof of a building 100m tall with an initial velocity of 20m/s. Use this information for exercise 35-38.

#36
When will the ball reach a height of