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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## If the charge of staying in a student youth hostel tagged by: VJesus12 ##### This topic has 3 expert replies and 1 member reply ### Top Member ## If the charge of staying in a student youth hostel If the charge of staying in a student youth hostel is$18.00/day for the first week, and $10.00/day for each additional week, How much does it cost to stay for 23 days? A.$160
B. $289 C.$282
D. $274 E.$286

The OA is E .

Experts, how can I solve this PS question? What is the equation that I should use?

### GMAT/MBA Expert

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VJesus12 wrote:
If the charge of staying in a student youth hostel is $18.00/day for the first week, and$10.00/day for each additional week, How much does it cost to stay for 23 days?

A. $160 B.$289
C. $282 D.$274
E. $286 The OA is E . Experts, how can I solve this PS question? What is the equation that I should use? Hi vjesus12. Let's take a look at your question. We are interested in the cost of 23 days. We have to divide this 23 days as follows: 7 days (a week) + 16 days. Then, the equation that gives us the cost total is: $$Cost=18\cdot\left(7\right)+10\cdot\left(16\right)=126+160=286\ \text{dollars}.$$ This is why the correct answer is the option E=$286.

I'm available if you'd like a follow-up.

Regards.

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23 days cost = 7 days * $18 + 16 days *$10
= $126 +$160 = $286 ### GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2666 messages Followed by: 125 members Upvotes: 1153 GMAT Score: 770 VJesus12 wrote: If the charge of staying in a student youth hostel is$18.00/day for the first week, and $10.00/day for each additional week, How much does it cost to stay for 23 days? A.$160
B. $289 C.$282
D. $274 E.$286

The OA is E .

Experts, how can I solve this PS question? What is the equation that I should use?
Note, also, that once you get to this equation: 18*7 + 10*16, there's no need to actually solve, so we can save a little time.
18*7--> units digit of 6;
10*16 --> units digit of 0

Adding one term with a units of 6 to another with a units of 0 will give us a sum with a units digit of 6. Only E works.

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Save $100 off any live Veritas Prep GMAT Course Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! ### GMAT/MBA Expert GMAT Instructor Joined 25 Apr 2015 Posted: 2950 messages Followed by: 19 members Upvotes: 43 VJesus12 wrote: If the charge of staying in a student youth hostel is$18.00/day for the first week, and $10.00/day for each additional week, How much does it cost to stay for 23 days? A.$160
B. $289 C.$282
D. $274 E.$286
To stay in the hostel for 23 days, it would cost:

18(7) + 10(16) = 126 + 160 = $286 Answer: E[spoiler] _________________ Scott Woodbury-Stewart Founder and CEO scott@targettestprep.com See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews • FREE GMAT Exam Know how you'd score today for$0

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