For telephone calls between two particular cities, a telephone company charges $0.40

Question

For telephone calls between two particular cities, a telephone company charges $0.40 per minute if the calls are placed between 5:00 a.m. and 9:00 p.m. and $0.25 per minute if the calls are placed between 9:00 p.m. and 5:00 a.m. If the charge for a call between the two cities placed at 1:00 p.m. was $10.00, how much would a call of the same duration have cost if it had been placed at 11.00 p.m.?

(A) $3.75

(B) $6.25

(C) $9.85

(D) $10.00

(E) $16.00

Answer: B
Source: Official guide

Brent@GMATPrepNow · Answer

BTGModeratorVI wrote: ↑Sun Sep 27, 2020 7:01 am For telephone calls between two particular cities, a telephone company charges $0.40 per minute if the calls are placed between 5:00 a.m. and 9:00 p.m. and $0.25 per minute if the calls are placed between 9:00 p.m. and 5:00 a.m. If the charge for a call between the two cities placed at 1:00 p.m. was $10.00, how much would a call of the same duration have cost if it had been placed at 11.00 p.m.? (A) $3.75 (B) $6.25 (C) $9.85 (D) $10.00 (E) $16.00 Answer: B Source: Official guide Let x = the duration (in minutes) of the call For calls at $0.40 per minute, we can write: 0.4x = 10 Solve to get: x = 25 So, the original call lasted 25 minutes. If the 25-minute call were placed at 11 pm (at $0.25 per minute) , the cost would = 25 x $0.25 = $6.25 Answer: B Cheers, Brent

swerve · Answer

BTGModeratorVI wrote: ↑Sun Sep 27, 2020 7:01 am For telephone calls between two particular cities, a telephone company charges $0.40 per minute if the calls are placed between 5:00 a.m. and 9:00 p.m. and $0.25 per minute if the calls are placed between 9:00 p.m. and 5:00 a.m. If the charge for a call between the two cities placed at 1:00 p.m. was $10.00, how much would a call of the same duration have cost if it had been placed at 11.00 p.m.? (A) $3.75 (B) $6.25 (C) $9.85 (D) $10.00 (E) $16.00 Answer: B Source: Official guide Call charges per minute 0.4(5am-9pm):0.25(9pm-5am) These charges are in proportion 8:5. So, since we spend 10$ while talking during the 5am-9pm period, it will cost (10*5)/8 or 6.25$ to make the call during the other time period. Therefore, B

Scott@TargetTestPrep · Answer

BTGModeratorVI wrote: ↑Sun Sep 27, 2020 7:01 am For telephone calls between two particular cities, a telephone company charges $0.40 per minute if the calls are placed between 5:00 a.m. and 9:00 p.m. and $0.25 per minute if the calls are placed between 9:00 p.m. and 5:00 a.m. If the charge for a call between the two cities placed at 1:00 p.m. was $10.00, how much would a call of the same duration have cost if it had been placed at 11.00 p.m.? (A) $3.75 (B) $6.25 (C) $9.85 (D) $10.00 (E) $16.00 Answer: B Source: Official guide Solution: We can let m = the number of minutes for the call and create the equation: 0.4m = 10 m = 25 So if the call was placed at 11 pm, it would have cost 25 x 0.25 = 6.25 dollars. Answer: B

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For telephone calls between two particular cities, a telephone company charges $0.40

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Re: For telephone calls between two particular cities, a telephone company charges $0.40

Re: For telephone calls between two particular cities, a telephone company charges $0.40

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Re: For telephone calls between two particular cities, a telephone company charges $0.40

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