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# At the local grocery store, apples normally cost 40 cents each. During

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Math Expert
Joined: 02 Sep 2009
Posts: 58335
At the local grocery store, apples normally cost 40 cents each. During  [#permalink]

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16 May 2018, 04:35
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Difficulty:

15% (low)

Question Stats:

85% (01:03) correct 15% (01:40) wrong based on 63 sessions

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At the local grocery store, apples normally cost 40 cents each. During a recent sale, the price was reduced to 3 apples for a dollar. How much money would be saved by purchasing 30 apples at the sale price?

A. $1 B.$1.50
C. $2 D.$2.50
E. $3 _________________ e-GMAT Representative Joined: 04 Jan 2015 Posts: 3074 Re: At the local grocery store, apples normally cost 40 cents each. During [#permalink] ### Show Tags 16 May 2018, 04:42 Solution Given: • Normally apples cost 40 cents each • In sale, 3 apples cost a dollar To find: • What will be the savings if 30 apples were purchased at sale price? Approach and Working: • As the normal price of each apple is 40 cents, the original price of 30 apples = 40 * 30 cents = 1200 cents =$12
• At sale price, 3 apples cost $1 o Therefore, 30 apples will cost$10

• Hence, the amount of savings = $12 -$10 = $2 Hence, the correct answer is option C. Answer: C _________________ Target Test Prep Representative Status: Head GMAT Instructor Affiliations: Target Test Prep Joined: 04 Mar 2011 Posts: 2817 Re: At the local grocery store, apples normally cost 40 cents each. During [#permalink] ### Show Tags 18 May 2018, 11:20 Bunuel wrote: At the local grocery store, apples normally cost 40 cents each. During a recent sale, the price was reduced to 3 apples for a dollar. How much money would be saved by purchasing 30 apples at the sale price? A.$1
B. $1.50 C.$2
D. $2.50 E.$3

At regular price, 30 apples cost 30 x 0.40 = 12 dollars.

At the sale price, 30 apples cost 30 x 1/3 = 10 dollars.

So at the sale price, a total of 2 dollars is saved.

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GMATH Teacher
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Re: At the local grocery store, apples normally cost 40 cents each. During  [#permalink]

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04 Nov 2018, 12:59
Bunuel wrote:
At the local grocery store, apples normally cost 40 cents each. During a recent sale, the price was reduced to 3 apples for a dollar. How much money would be saved by purchasing 30 apples at the sale price?

A. $1 B.$1.50
C. $2 D.$2.50
E. \$3

Trivial application of UNITS CONTROL, one of the most powerful tools of our method!

$$?\,\,\,\left[ \ \right]\,\,\, = \,\,\,30\,\,{\rm{apples}}\,\,\,\left( {{{\,40\,\,{\rm{cents}}\,} \over {1\,\,{\rm{apple}}}}} \right)\,\,\,\left( {{{1\,\,{\rm{\ }}} \over {\,100\,\,{\rm{cents}}\,}}} \right)\,\,\,\, - \,\,\,30\,\,{\rm{apples}}\,\,\left( {{{1\,\,{\rm{\ }}} \over {\,3\,\,{\rm{apples}}\,}}} \right)\,\,\,\,\, = \,\,\,3 \cdot 4 - 10\,\,\, = \,\,\,2\,\,\,\,\,\left[ \ \right]$$

This solution follows the notations and rationale taught in the GMATH method.

Regards,
Fabio.
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Fabio Skilnik :: GMATH method creator (Math for the GMAT)
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Re: At the local grocery store, apples normally cost 40 cents each. During   [#permalink] 04 Nov 2018, 12:59
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