A5 ounce can of tuna cost $0.90. a 12 ounce can of tuna costs $2.40. which is better to buy

5 ounce can is better to buy

Given that 5 ounce can of tuna cost $0.90 and a 12 ounce can of tuna costs $2.40

To find: which is better to buy

To find out which one is the better buy we have to find out what the unit price of both cans

To find a unit price you divide the ounce by the cost.

cost of 5 ounce can = $ 0.90

Thus cost of 1 ounce is found out by:

Thus cost of one ounce is $ 0.18

cost of 12 ounce can = $ 2.40

Thus cost of 1 ounce is found out by:

Thus cost of one ounce is $ 0.2

Thus on comparing unit price of 5 ounce can and 12 ounce can,

we can see clearly that unit price of 5 ounce can costs less than 12 ounce can

Thus 5 ounce can is better to buy

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step-by-step explanation: