exam Maths Puzzle Numerical Ability

I need help with a story problem.
A diamond is purchased for $2500. Suppose it increases 5% in value each year. Find the value after 8 years.

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exam Other Question

For given vectors u = (2,0,3), v = (-1,4,2), let points A, B, P and Q have position vectors 3v - u, 4v, 2u + v, (4,8,13) respectively. Show that ABQP forms a parallelogram (NB not the sum of two consecutive integers is less than 75.find the pair ofintegers with the greatest sum.