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Last year, a certain public transportation system sold an average [#permalink]

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15 Apr 2008, 16:42

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Last year, a certain public transportation system sold an average (arithmetic mean) of 41,000 tickets per day on weekdays (Monday through Friday) and an average of 18,000 tickets per day on Saturday and Sunday. Which of the following is closest to the total number of tickets sold last year?

(A) 1 million (B) 1.25 million (C) 10 million (D) 12.5 million (E) 125 million

One year = 52 weeks 1K = 10^3 1M = 10^6 1 week sale = weekend sale + weekday sale = (41K * 5) + (18K * 2) = 205K + 36K = 241K One year sale = 241K *52 = (241*52)K

241 * 52 = 12.5K (approx)

One year sale = 12.5K * K = 12.5 M

Madelaine88 wrote:

Last year, a certain public transportation system solad an average (arithmetic mean) of 41 000 tickets per day on weekdays (Monday through Friday) and an average of 18 000 tickets per day on Saturday and Sunday. Which of the following is closest to the total number of tickets sold last year?

A/ 1 million B/ 1.25 million C/ 10 million D/ 12.5 million E/ 125 million

Last year, a certain public transportation system sold an average (arithmetic mean) of 41 000 tickets per day on weekdays (Monday through Friday) and an average of 18 000 tickets per day on Saturday and Sunday. Which of the following is closest to the total number of tickets sold last year?

average = sum/# of terms

weekdays 41000 = x/5 days 205,000 = x (total tickets sold per week)

weekend 18000 = x/2 days 36000 = x (total tickets sold per week)

Re: Last year, a certain public transportation system sold an average [#permalink]

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07 Dec 2015, 04:04

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