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21 Feb 2014, 01:03
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D
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Difficulty:
5%
(low)
Question Stats:
95% (01:12) correct
5%
(01:40)
wrong
based on 1834
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If 3/x = 2 and y/4 = 3, then (3 + y)/(x + 4) =
(A) 10/9
(B) 3/2
(C) 20/11
(D) 30/11
(E) 5
(A) 10/9
(B) 3/2
(C) 20/11
(D) 30/11
(E) 5
21 Feb 2014, 01:04
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SOLUTION
If 3/x = 2 and y/4 = 3, then (3 + y)/(x + 4) =
(A) 10/9
(B) 3/2
(C) 20/11
(D) 30/11
(E) 5
\(\frac{3}{x} = 2\) --> \(x=\frac{3}{2}\);
\(\frac{y}{4} = 3\) --> \(y=12\).
Substitute: \(\frac{3 + y}{x + 4} =\frac{3+12}{\frac{3}{2}+4}=\frac{15}{\frac{11}{2}}=\frac{30}{11}\).
Answer: D.
If 3/x = 2 and y/4 = 3, then (3 + y)/(x + 4) =
(A) 10/9
(B) 3/2
(C) 20/11
(D) 30/11
(E) 5
\(\frac{3}{x} = 2\) --> \(x=\frac{3}{2}\);
\(\frac{y}{4} = 3\) --> \(y=12\).
Substitute: \(\frac{3 + y}{x + 4} =\frac{3+12}{\frac{3}{2}+4}=\frac{15}{\frac{11}{2}}=\frac{30}{11}\).
Answer: D.
21 Feb 2014, 02:11
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From the question x=3/2 and y=12
Substitute this in the equation:-
(3+12)/(3/2+4)=2x(15)/11=30/11
Option (D)
Substitute this in the equation:-
(3+12)/(3/2+4)=2x(15)/11=30/11
Option (D)
