exam Maths Puzzle Numerical Ability

Samantha has a total of one hundred forty-one pennies,nickels and quarters.She has a total of $15.17. She has fifteen more quarters than pennies and fifteen fewer quarters than nickels. How many of each coin does she have?

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exam Other Question

Which of the following investments will produce the largest amount of interest?

a. $1,000 at 6% interest compounded annually for 5 years
b. $1,000 at 7% interest c e. Find the Profit Equation by substituting your equations for R and C in the equation . Simplify the equation.