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Noman: Junior | Next Rank: 30 Posts; Posts: 17; Joined: Thu May 21, 2015 9:06 amFollowed by: 1 member

by Noman » Sun Jan 31, 2016 8:47 pm

Max can have his mobile phone repaired for $4000, or he can trade it in & receive $2000 credit toward the purchase of new mobile that sells for $8400. if Max trades in his mobile phone, the cost of the purchasing the new mobile is what percent greater than the cost of having his current mobile phone repaired?
A.44 B.60 C.70 D.75 E. 80

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Source: Beat The GMAT — Quantitative Reasoning | Sun Jan 31, 2016 8:47 pm

sanju09: GMAT Instructor; Posts: 3650; Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members; Location: India; Thanked: 267 times; GMAT Score:760

by sanju09 » Thu Feb 04, 2016 11:26 pm

Noman wrote:Max can have his mobile phone repaired for $4000, or he can trade it in & receive $2000 credit toward the purchase of new mobile that sells for $8400. if Max trades in his mobile phone, the cost of the purchasing the new mobile is what percent greater than the cost of having his current mobile phone repaired?
A.44 B.60 C.70 D.75 E. 80

The story tells us that Max has two options for the spending, spend $4000 or spend $6400; and the question simply asks, "6400 is what percent greater than 4000?", let's solve

[(6400 - 4000)/4000] Ã— 100 = [(2400)/4000] Ã— 100 = [spoiler]60% (B)[/spoiler]

The mind is everything. What you think you become. -Lord Buddha

Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
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www.manyagroup.com

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sana.noor: Legendary Member; Posts: 512; Joined: Mon Jun 18, 2012 11:31 pmFollowed by: 20 members; Thanked: 42 times

by sana.noor » Thu Feb 11, 2016 6:01 am

Its an easy one!
the cost of repair is $4000
if he purchase new one by giving the old one he will have to pay $2000 less than the original amount of new mobile= the price of new mobile is $8400
$8400-$2000= he has to pay $6400 which is $2400 more than the repair cost.
the percentage change will be = 2400/4000 * 100 = 60%

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members; Location: Vancouver, BC; Thanked: 5254 times; GMAT Score:770

by Brent@GMATPrepNow » Thu Feb 11, 2016 7:42 am

For additional practice, try this similar question - https://www.beatthegmat.com/ann-s-new-bi ... 72691.html

Cheers,
Brent

Brent Hanneson - Creator of GMATPrepNow.com

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