exam Maths Puzzle Numerical Ability

Kim got 74/80 on an exam. Write the decimal equivalent of this fraction.

I think it is 0.95. Is that correct?

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exam Other Question

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 1 divided by square root of 2-3