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14 Aug 2019, 00:02
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E
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Difficulty:
5%
(low)
Question Stats:
95% (00:55) correct
5%
(01:09)
wrong
based on 42
sessions
History
Date
Time
Result
Not Attempted Yet
A solution contains 18 grams of active ingredient within every 100 cubic milliliters of solution. How many grams of active ingredient would be contained in a vessel of 40 cubic milliliters of the solution?
A. 5.00
B. 6.00
C. 6.20
D. 6.70
E. 7.20
A. 5.00
B. 6.00
C. 6.20
D. 6.70
E. 7.20
14 Aug 2019, 11:56
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Bunuel
A solution contains 18 grams of active ingredient within every 100 cubic milliliters of solution. How many grams of active ingredient would be contained in a vessel of 40 cubic milliliters of the solution?
A. 5.00
B. 6.00
C. 6.20
D. 6.70
E. 7.20
A. 5.00
B. 6.00
C. 6.20
D. 6.70
E. 7.20
per 100 m^3 we have 18/100 ingredients
so for 40 m^3 we have 18/100 * 40 ; 7.2
IMO E
18 Aug 2019, 19:37
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Bunuel
A solution contains 18 grams of active ingredient within every 100 cubic milliliters of solution. How many grams of active ingredient would be contained in a vessel of 40 cubic milliliters of the solution?
A. 5.00
B. 6.00
C. 6.20
D. 6.70
E. 7.20
A. 5.00
B. 6.00
C. 6.20
D. 6.70
E. 7.20
We can create the proportion:
18/100 = n/40
40 x 18 = 100n
10 x 18 = 25n
2 x 18 = 5n
36 = 5n
7.2 = n
Answer: E
