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14 Aug 2019, 00:02
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E
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Difficulty:
5%
(low)
Question Stats:
96% (00:59) correct
4%
(01:09)
wrong
based on 51
sessions
History
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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
Archit3110
Major Poster
14 Aug 2019, 11:56
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Bunuel
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
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
