exam Maths Puzzle Numerical Ability

a bullet shot straight up is s feet above the ground in t seconds
[[[[where s=f(t)=-16t^2 + 265t]]]]. find the height of the bullet 3 seconds after it is shot

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exam Other Question

Tripling the greater of two consecutive even intergers give gives thesame result as subtracting 10 from the lesser even interger. What are the intergers? (3/8)^-1 * (2a^3x^5)^2/(8a^-3x^-1)^-3