Jake bought 14.5 pounds of dried navy beans for $25.52. What is the price per pound for the beans??

Question

Explain how you know your answer is reasonable.

Answer 1

Hi Dalinda, to find the price of a pound of beans, just divide the total cost by the total weight.

 

Price per pound = $25.52 / 14.5 = $1.76 per pound

 

I know the price of the beans cannot be $2.00 per pound because that would give me an answer of $29.00, which is too high.

 

I know the price of the beans cannot be $1.00 per pound because that would give me an answer of $14.50, which is too low.

 

Therefore I have bracketed the cost per pound between $1.00 and $2.00. I could have used other values for the bracketing values, but the checking is easy with the two values I picked.

 

Questions?