The grocery store sells ketchup in different sizes of bottles: 375 mL for $2.99, 500 mL for $3.79, and a 1.5L bottle for $11.55
a) What is the price per 100ml for each bottle?
b) What bottle is the better buy?
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Answer:
a) 375 ml =$2.99
it's 100ml =(2.99/375)*100=$0.80 (approx)
500ml =$3.79
its 100ml =(3.79/500)*100=$0.76(approx)
1500ml =$11.55
it's 100ml =(11.55/1500)*100=0.77
b) 500mL bottle is better to buy
because it costs least for 100 mL
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