exam Maths Puzzle Numerical Ability

A person invested $17,000 for one year, part at 10% part at 12% and the remainder at 15%. The total annual income from these investments was $2110. The amount of money invested at

Read Solution (Total 0)

exam Other Question

I hope this is the right topic! I am not sure where to start with this....

The volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box.

Thank you in advance!
ac The total profit (in dollars) for sales of x rowing machines is given by
P(x)=-0.2x^2+300x-200. What is the profit if 500 are sold? For what value of x will the profit be at a maximum?