exam Maths Puzzle Numerical Ability

roise's palm pirates, a manufacturer of electronic organizers, estimates that when x hundred palm pirates are made, the averages cost per unit is given by C(x)=0.4x^2-3.68x+9.524,

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exam Other Question

A cashier saves 1/5 of her gross monthly salary. This is $40 more than is saved by her friend that is a secretary whose salary is $200 greater. If the secretary save 1/7 of her salary. How much does each earn per month? tickets for homecoming dance cost $20 for a single ticket or $35 for a couple. ticket sales totaled $2280, and 128 people attende. how many tickets of each type were sold?