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The price of a pasta box in the neighborhood grocery store is $7; the 07 Jul 2016, 06:07
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13% (01:23) correct 88% (01:24) wrong based on 16 sessions

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The price of a pasta box in the neighborhood grocery store is $7; the price of a pasta box in the market is $5. A bus ticket to the market costs $4.70 (one way). What is the minimum number of pasta boxes that must be bought so the trip would be economically worthwhile?

A. 3.
B. 4.
C. 5.
D. 6.
E. 7.



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The price of a pasta box in the neighborhood grocery store is $7; the 07 Jul 2016, 12:51
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Bunuel
The price of a pasta box in the neighborhood grocery store is $7; the price of a pasta box in the market is $5. A bus ticket to the market costs $4.70 (one way). What is the minimum number of pasta boxes that must be bought so the trip would be economically worthwhile?

A. 3.
B. 4.
C. 5.
D. 6.
E. 7.
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Given the box from grocery is 7$ and from market 5$.

The total round trip home to market and back will be 4.7 * 2 = 9.4 $.

Lets go options wise.

Qrocery
3*7 = 21 (Option * grocery price )
4*7 = 28
5*7 = 35
6*7 = 42
7*7 = 49


Market ((Option * Market price ) + journey
3*5 + 9.4 = 24.4 = 24 ( rounded to nearest whole number)
4*5 + 9.4 = 29.4 = 29
5*5 + 9.4 = 34.4 = 34
6 *5 + 9.4 = 39.4 = 39
7*5 + 9.4 = 44.4 = 44

Difference ( just checking which one will yield better result if there is a difference )
24 - 21 = 4 ( total market expenses - grocery) or ( grocery - M P )
29 - 28 = 1
35 - 34 = 1
42 - 39 = 3
49 - 44 = 5

But observe options B and C are nearest to 1. Now subtracting without rounding.

so, 29.4 - 28 = 1.6 and 35 - 34.4 = 0.6

So, the best option would be 5 boxes...Option C.

OA please... Will correct if I missed anything.
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The price of a pasta box in the neighborhood grocery store is $7; the 07 Jul 2016, 14:45
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if you used break even analysis

price to buy x boxes of pasta at the grocery store = 7x
price to buy x boxes in market = 5x
for market you spend 4.70 * 2 (round trip)
equate the two
7x = 5x + 9.40
or x = at least 4.7 boxes to break even

so 5 is my answer.
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The price of a pasta box in the neighborhood grocery store is $7; the 08 Jul 2016, 06:35
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Bunuel
The price of a pasta box in the neighborhood grocery store is $7; the price of a pasta box in the market is $5. A bus ticket to the market costs $4.70 (one way). What is the minimum number of pasta boxes that must be bought so the trip would be economically worthwhile?

A. 3.
B. 4.
C. 5.
D. 6.
E. 7.
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Total ticket to return from market = 9.40

Now checking the answer choices, we see 5 must be the minimum number of pasta boxes.

price of 5 boxes in neighborhood grocery= 35
price from market= 5*5+9.40 < 35

C is the answer
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The price of a pasta box in the neighborhood grocery store is $7; the 02 Aug 2016, 03:26
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'5' seems to be the answer. Either the OA is to be corrected or an explanation explaining the OA is to be provided.



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