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A college has a soccer club, a tennis club and a basketball club. St

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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
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GMAT 1: 800 Q59 V59
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A college has a soccer club, a tennis club and a basketball club. St [#permalink]

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08 Jun 2018, 02:44
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Difficulty:

15% (low)

Question Stats:

84% (01:51) correct 16% (01:28) wrong based on 49 sessions

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[GMAT math practice question]

A college has a soccer club, a tennis club and a basketball club. Students can enroll in only one of these three clubs. The ratio of the number of soccer club members to the number of tennis club members is 2:3. The ratio of the number of tennis club members to the number of basketball club members is 4:5. A total of 350 students have joined one of these three clubs. How many students are enrolled in the soccer club?

A. 80
B. 90
C. 100
D.120
E. 150

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MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
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"Only $99 for 3 month Online Course" "Free Resources-30 day online access & Diagnostic Test" "Unlimited Access to over 120 free video lessons - try it yourself" BSchool Forum Moderator Joined: 26 Feb 2016 Posts: 2846 Location: India GPA: 3.12 A college has a soccer club, a tennis club and a basketball club. St [#permalink] Show Tags 08 Jun 2018, 02:52 1 MathRevolution wrote: [GMAT math practice question] A college has a soccer club, a tennis club and a basketball club. Students can enroll in only one of these three clubs. The ratio of the number of soccer club members to the number of tennis club members is 2:3. The ratio of the number of tennis club members to the number of basketball club members is 4:5. A total of 350 students have joined one of these three clubs. How many students are enrolled in the soccer club? A. 80 B. 90 C. 100 D.120 E. 150 The ratio of members in the Soccer and Tennis clubs is 2:3. For every 2x Soccer club members, we will have 3x Tennis club members. The ratio of members in the Tennis and Basketball clubs is 4:5. For every 4y Tennis Club members, we have 5y basketball members. To make the ratios comparable, x = 4 and y = 3. Now, Soccer : Tennis = 8:12 and Tennis : Basketball = 12:15. Overall ratio Soccer:Tennis:Basketball - 8:12:15 Therefore, the number of students who are enrolled in the soccer clue is $$\frac{8}{8+12+15} * 350 = \frac{8}{35} * 350 = 80$$(Option A) _________________ You've got what it takes, but it will take everything you've got Manager Joined: 14 Dec 2017 Posts: 226 Re: A college has a soccer club, a tennis club and a basketball club. St [#permalink] Show Tags 08 Jun 2018, 03:25 MathRevolution wrote: [GMAT math practice question] A college has a soccer club, a tennis club and a basketball club. Students can enroll in only one of these three clubs. The ratio of the number of soccer club members to the number of tennis club members is 2:3. The ratio of the number of tennis club members to the number of basketball club members is 4:5. A total of 350 students have joined one of these three clubs. How many students are enrolled in the soccer club? A. 80 B. 90 C. 100 D.120 E. 150 Given, that the students can enroll in only one of the three clubs. Hence there is no overlap of members. Let Tennis club members = T Soccer club members = S Basketball club members = B T+S+B = 350..........eq.(i) S/T = 2/3 & T/B = 4/5 Substituting for S in eq.(i) We get S = 80 Answer A. Thanks, GyM Math Revolution GMAT Instructor Joined: 16 Aug 2015 Posts: 5662 GMAT 1: 800 Q59 V59 GPA: 3.82 Re: A college has a soccer club, a tennis club and a basketball club. St [#permalink] Show Tags 10 Jun 2018, 18:36 => Let S, T and B be numbers of members in the soccer club, the tennis club and the basketball club, respectively. Since S:T = 2:3 = 8:12 and T:B = 4:5 = 12:15, we have S:T:B = 8:12:15. Let S = 8k, T = 12k and B = 15k. Then S + T + B = 8k + 12k + 15k = 35k = 350, and k = 10. The number of members of the soccer club is S = 8k = 80. Therefore, the answer is A. Answer: A _________________ MathRevolution: Finish GMAT Quant Section with 10 minutes to spare The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only$99 for 3 month Online Course"
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Re: A college has a soccer club, a tennis club and a basketball club. St [#permalink]

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12 Jun 2018, 11:14
MathRevolution wrote:
[GMAT math practice question]

A college has a soccer club, a tennis club and a basketball club. Students can enroll in only one of these three clubs. The ratio of the number of soccer club members to the number of tennis club members is 2:3. The ratio of the number of tennis club members to the number of basketball club members is 4:5. A total of 350 students have joined one of these three clubs. How many students are enrolled in the soccer club?

A. 80
B. 90
C. 100
D.120
E. 150

We have the following ratios:

soccer : tennis = 2 : 3

soccer : tennis = 8 : 12

and

tennis : basketball = 4 : 5

tennis : basketball = 12 : 15

Thus,

soccer : tennis : basketball = 8x : 12x : 15x

So we have:

8x + 12x + 15x = 350

35x = 350

x = 10

So 8(10) = 80 students joined the soccer club.

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Re: A college has a soccer club, a tennis club and a basketball club. St   [#permalink] 12 Jun 2018, 11:14
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