Question

What is best ?
• ½ pint of oil at $0.90, or • 1 pint of oil at $1.65, or • 2 pints of oil at $3.40, or • 5 pints of oil at $8.10 ?

Answer 1

compare the ratios to each other

Answer 2

If you get the unit rates for each using 1 pint as your unit, you will find the 5 pints at $8.10 is the best deal.
1/2 pint at $.90 comes to $1.80 per pint
1 pint at $1.65
2 pints at $3.40 comes to $1.70 per pint
5 pints at $8.10 comes to $1.62 per pint

Answer 3

Ok, thank you