exam Maths Puzzle Numerical Ability

Assume that y varies inversely as x. If y = 3.2 when x =0.2, find y when x =1.6

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exam Other Question

Hello, I need to simplify the expression: {54b^4x^4/16bx^2}^1/3. Thank you! how many permutations are there of the letters in the word "distinction"?