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If 5b = 6c = 7d = 120, then what is the value of
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03 Dec 2020, 10:47
03 Dec 2020, 10:47
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If \(5b = 6c = 7d = 120\), then what is the value of \(\frac{7bd}{c}\) ?
A. 100
B. 120
C. 144
D. 148
E. 196
Kudos for the right answer and explanation
A. 100
B. 120
C. 144
D. 148
E. 196
Kudos for the right answer and explanation
Re: If 5b = 6c = 7d = 120, then what is the value of
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10 Dec 2020, 08:57
10 Dec 2020, 08:57
1
In this case, First we should find the values of b , c , d
Since 5b= 6c= 7d= 120, then b = 120/5 = 24 and c=20 120/6 and d = 17.1. 120/7
Next we are asked to find the value of 7(b)(d) / c ==> plug in numbers above we get ==>> 7*(24)(17.1)/ 20 = 143.64 rounded to be 144
Answer is (C).
Since 5b= 6c= 7d= 120, then b = 120/5 = 24 and c=20 120/6 and d = 17.1. 120/7
Next we are asked to find the value of 7(b)(d) / c ==> plug in numbers above we get ==>> 7*(24)(17.1)/ 20 = 143.64 rounded to be 144
Answer is (C).
gmatclubot
Re: If 5b = 6c = 7d = 120, then what is the value of [#permalink]
10 Dec 2020, 08:57
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