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23 Mar 2019, 12:28
2
00:00

Difficulty:

15% (low)

Question Stats:

85% (01:19) correct 15% (01:34) wrong based on 27 sessions

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A moving company charges a flat rate of $550 for loading its trucks and an additional$20 per $$\frac{1}{5}$$ mile for moves within the city. How much would a move of 2.8 miles within the city cost?

A. $690 B.$790
C. $830 D.$880
E. $1,010 Source: McGraw-Hill's GMAT (6th) Difficulty Level: 550 _________________ Intern Joined: 18 Jul 2018 Posts: 5 Re: A moving company charges a flat rate of$550 for loading its trucks an  [#permalink]

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23 Mar 2019, 13:30
2
A moving company charges a flat rate of $550 for loading its trucks and an additional$20 per $$\frac{1}{5}$$ mile for moves within the city. How much would a move of 2.8 miles within the city cost?

A. $690 B.$790
C. $830 D.$880
E. $1,010 Source: McGraw-Hill's GMAT Fixed cost+ Variable cost = Total Cost Fixed cost= 550 Variable cost= the amount $$\frac{1}{5}$$ goes into 2.8 miles multiplied by 20 It is helpful to know off the top of your head that $$\frac{1}{5}$$=.2, so the division becomes relatively simple. $$\frac{2.8}{.2}$$= $$\frac{28}{2}$$ = 14 550+14(20)= total cost 550+280=830 Answer: C ________________ If you like my explanation drop me a kudos! Also, I am here to learn, so if you find a mistake in my answer please tell me! All the best, Rumi Qadri GMAT Club Legend Joined: 18 Aug 2017 Posts: 5428 Location: India Concentration: Sustainability, Marketing GPA: 4 WE: Marketing (Energy and Utilities) Re: A moving company charges a flat rate of$550 for loading its trucks an  [#permalink]

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24 Mar 2019, 08:26
A moving company charges a flat rate of $550 for loading its trucks and an additional$20 per $$\frac{1}{5}$$ mile for moves within the city. How much would a move of 2.8 miles within the city cost?

A. $690 B.$790
C. $830 D.$880
E. $1,010 Source: McGraw-Hill's GMAT charges per mile 20/.2 = 100$
so
for 2.8 miles = 280 $total charges 280 + 550 ; 830$
IMO C