Question

Which of the following is the best buy? a3 lb. for $5.13 b2 lb. for $3.37 c3.25 lb. for $5.53 d1.5 lb. for $2.52

Answer 1

The question ask which of the following is the best buy?

They have given us the cost for some pound of commodity in each case. To know the best buy, we have to find the cost of 1 pound of each. The lowest value becomes the best buy

a 3 lb. for $5.13, here 1 Ib will cost

`(5.13)/(3)=1.71\text{ dollars }`

b 2 lb. for $3.37, here 1 Ib will cost

`(3.37)/(2)=1.69\text{ dollars }`

c 3.25 lb. for $5.53, here 1 Ib will cost

`(5.53)/(3.25)=1.70\text{ dollars }`

d 1.5 lb. for $2.52

`(2.52)/(1.5)=1.68\text{ dollars }`

From our result, the least cost is $1.68

Hence the correct answer is 1.5 lb. for $2.52, option d