exam Maths Puzzle Numerical Ability

Solve the following;Show the equation you used.
What % fo 72 is 48?

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exam Other Question

please help with the following :

a/py + y + a^2/p^2 The cost of producing a number of items x is given by C=mx+b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item).
(a)If the fixed cost i