exam Maths Puzzle Numerical Ability

Simplify;
(27(^-2x) (25^x)^4 (3^6x)^1/2 all over 9^x(625^x-1)^-2

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exam Other Question

Find k as a function of j.
j=5/k+1 +2 Profit:
A small country can grow only two crops for export, coffee and cocoa. The country has 500,000 hectares of land available for the crops. Long-term contracts require that at