If the price of a gallon of gas increases from $3.20 to $3.68, what percent did it increase?
Answer(s): A
To find the percent of increase, subtract the second number from the original/first number (3.68 - 3.2 = 0.48) and divide that result by the original number (0.48 / 3.20 = 0.15 = 15%)
If 5 apples cost $2.00, how much will 15 apples cost?
Answer(s): D
15 apples are three times as many as 5 apples, so 15 apples will cost 3 × $2 = $6
If 4 people can stain a deck in 2 days, how many people would be required to stain the deck in only 1 day?
If it requires 4 people for 2 days, then it would require 8 people for 1 day.
How much time is there between 7:45 am today and 3:15 pm tomorrow?
Answer(s): C
From 7:45 am today to 7:45 am tomorrow is 24 hours. From 7:45 am tomorrow to 3:15 pm tomorrow is 71/2 hours. Total is 311/2 hours.
If a gas tank can hold 30 gallons, how many gallons does it contain when it is three-fifths full?
30 gallons × 3/5 = 18
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