Chris’s convertible gets gas mileage that is 40 percent higher than that of Stan’s SUV. If Harry’s hatchback gets gas

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VJesus12: Legendary Member; Posts: 2276; Joined: Sat Oct 14, 2017 6:10 amFollowed by: 3 members

by VJesus12 » Thu Jun 04, 2020 7:08 am

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Chris’s convertible gets gas mileage that is 40 percent higher than that of Stan’s SUV. If Harry’s hatchback gets gas mileage that is 15 percent higher than that of Chris’s convertible, then Harry’s hatchback gets gas mileage that is what percent greater than that of Stan’s SUV?

(A) 25%
(B) 46%
(C) 55%
(D) 61%
(E) 66%

[spoiler]OA=D[/spoiler]

Source: Princeton Review

Source: Beat The GMAT — Problem Solving | Thu Jun 04, 2020 7:08 am

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Re: Chris’s convertible gets gas mileage that is 40 percent higher than that of Stan’s SUV. If Harry’s hatchback gets ga

by Scott@TargetTestPrep » Tue Jun 09, 2020 4:05 am

VJesus12 wrote: ↑
Thu Jun 04, 2020 7:08 am
Chris’s convertible gets gas mileage that is 40 percent higher than that of Stan’s SUV. If Harry’s hatchback gets gas mileage that is 15 percent higher than that of Chris’s convertible, then Harry’s hatchback gets gas mileage that is what percent greater than that of Stan’s SUV?

(A) 25%
(B) 46%
(C) 55%
(D) 61%
(E) 66%

[spoiler]OA=D[/spoiler]

Solution:

We can let Stan’s SUV’s gas mileage be 100. Thus Harry’s hatchback’s gas mileage is:

100 x 1.4 x 1.15 = 161

We see that 161 is 61% greater than 100.

Answer: D

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