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17 Sep 2019, 22:05
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
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Question Stats:
93% (00:53) correct
7%
(01:30)
wrong
based on 112
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A certain punch contains grape juice, orange juice, and pineapple juice and no other ingredients in a ratio of 2: 3: 7 respectively. If a bowl of this punch contains 21 ounces of orange juice, how many ounces of pineapple juice does it contain
A. 12
B. 14
C. 21
D. 49
E. 84
17 Sep 2019, 22:24
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A certain punch contains grape juice, orange juice, and pineapple juice and no other ingredients in a ratio of 2: 3: 7 respectively
let grape juice = 2x
orange juice = 3x
pineapple juice = 7x
given punch contains orange juice = 21 ounces
21 = 3x
x = 7
ounces of pineapple juice = 7x = 7*7 = 49
D is the correct answer
let grape juice = 2x
orange juice = 3x
pineapple juice = 7x
given punch contains orange juice = 21 ounces
21 = 3x
x = 7
ounces of pineapple juice = 7x = 7*7 = 49
D is the correct answer
17 Sep 2019, 22:32
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Sum the ratios = 2+3+7 = 12.
If there are 12 ounces, there would be: 2 ounces of grape juice, 3 ounces of orange juice, and 7 ounces of pineapple juice.
Now a bowl contains 21 ounces of orange juice. If 21 oz means 3/12, then how much oz for 9/12? it would be 63
Total oz in bowl = 63 + 21 = 84
Therefore, pineapple juice (oz) = 84 x 7/12 = 49.......Option D
If there are 12 ounces, there would be: 2 ounces of grape juice, 3 ounces of orange juice, and 7 ounces of pineapple juice.
Now a bowl contains 21 ounces of orange juice. If 21 oz means 3/12, then how much oz for 9/12? it would be 63
Total oz in bowl = 63 + 21 = 84
Therefore, pineapple juice (oz) = 84 x 7/12 = 49.......Option D
