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# While a family was away on vacation, they paid a neighborhood boy \$11

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Math Expert
Joined: 02 Sep 2009
Posts: 60460
While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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23 Jun 2018, 00:21
1
6
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Difficulty:

5% (low)

Question Stats:

92% (00:46) correct 8% (00:39) wrong based on 1013 sessions

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While a family was away on vacation, they paid a neighborhood boy \$11 per week to mow their lawn and \$4 per day to feed and walk their dog. If the family was away for exactly 3 weeks, how much did they pay the boy for his services?

A. \$45

B. \$54

C. \$71

D. \$95

E. \$117

NEW question from GMAT® Official Guide 2019

(PS05001)

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Joined: 02 Aug 2009
Posts: 8340
Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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23 Jun 2018, 00:36
2
Bunuel wrote:
While a family was away on vacation, they paid a neighborhood boy \$11 per week to mow their lawn and \$4 per day to feed and walk their dog. If the family was away for exactly 3 weeks, how much did they pay the boy for his services?

A. \$45

B. \$54

C. \$71

D. \$95

E. \$117

NEW question from GMAT® Official Guide 2019

(PS05001)

Let's work on each week..
To mow the lawn - 11\$
To feed dog - 4\$ per day so 4*7\$=28\$
Total for one week =11+28=39\$

So for 3 weeks 39*3=117

E
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Manager
Joined: 10 May 2018
Posts: 119
Concentration: Finance, Sustainability
While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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23 Jun 2018, 01:18
I believe the moment you start calculating the exact figure boy would receive, you fall for a trap and lose some time. Instead, for questions like this, I'd suggest eliminate all options which don't fit the criterion.

Since the boy is entitled to \$84 (\$4*3*7), just for feeding and walking the dog, go ahead and mark the option greater than \$100, which is only one choice. That being said, this method should be used with caution.
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Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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23 Jun 2018, 03:48
1
Bunuel wrote:
While a family was away on vacation, they paid a neighborhood boy \$11 per week to mow their lawn and \$4 per day to feed and walk their dog. If the family was away for exactly 3 weeks, how much did they pay the boy for his services?

A. \$45

B. \$54

C. \$71

D. \$95

E. \$117

NEW question from GMAT® Official Guide 2019

(PS05001)

Note:

1. Family paid \$11 per week to mow their lawn.
2. Family paid \$4 per day to feed their cows.

Requirement:
To find out the total cost of the family during 3 weeks trips .

Calculation:

3*11 = 33
21*4 = 84

(33+84) = \$117

Thus the best option is E.
GMAT Club Legend
Joined: 12 Sep 2015
Posts: 4214
Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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23 Jun 2018, 06:04
Top Contributor
Bunuel wrote:
While a family was away on vacation, they paid a neighborhood boy \$11 per week to mow their lawn and \$4 per day to feed and walk their dog. If the family was away for exactly 3 weeks, how much did they pay the boy for his services?

A. \$45

B. \$54

C. \$71

D. \$95

E. \$117

..... paid a neighborhood boy \$11 per week to mow their lawn...
So, in 3 weeks, the amount the family paid for lawn-moving = (3 weeks)(\$11/week) = \$33

...the family paid \$4 per DAY to feed and walk their dog...
3 weeks = 21 DAYS
So, the amount the family paid for dog care = (21 days)(\$4/day) = \$84

TOTAL amount paid = \$33 + \$84 = \$117

Cheers,
Brent
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Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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27 Jun 2018, 18:08
Bunuel wrote:
While a family was away on vacation, they paid a neighborhood boy \$11 per week to mow their lawn and \$4 per day to feed and walk their dog. If the family was away for exactly 3 weeks, how much did they pay the boy for his services?

A. \$45

B. \$54

C. \$71

D. \$95

E. \$117

The family paid:

11 x 3 + 4 x 21 = 33 + 84 = 117 dollars.

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Joined: 04 Sep 2018
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GPA: 3.33
Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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14 Nov 2018, 12:24
Just a question for experienced folks on here. Do such easy questions even appear on the gmat? This seems like a 300 level at best.

Thanks.
Manager
Joined: 24 Sep 2018
Posts: 111
Location: India
Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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15 Jul 2019, 00:11
11*3 =33
21*4=84
So total =117
Intern
Joined: 09 May 2019
Posts: 23
Re: While a family was away on vacation, they paid a neighborhood boy \$11  [#permalink]

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18 Jul 2019, 04:08
11 per week

then for three weeks - 11*3 = 33
\$ per day for feeding dog
total number of days - 21 * 4
84

84 + 33 117
Re: While a family was away on vacation, they paid a neighborhood boy \$11   [#permalink] 18 Jul 2019, 04:08
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