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# There are only apples and oranges in a box. What is the probability

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Manager
Joined: 03 Mar 2018
Posts: 179
There are only apples and oranges in a box. What is the probability  [#permalink]

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28 Mar 2018, 06:22
00:00

Difficulty:

5% (low)

Question Stats:

87% (00:35) correct 13% (00:30) wrong based on 56 sessions

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There are only apples and oranges in a box. What is the probability that the fruit selected at random from the box is an apple?

1) There are 2 apples in the box.
2) The ratio of the number of apples to the number of oranges is 1 to 4.

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Concentration: Entrepreneurship, Operations
GMAT 1: 630 Q48 V28
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Re: There are only apples and oranges in a box. What is the probability  [#permalink]

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28 Mar 2018, 08:28
itisSheldon wrote:
There are only apples and oranges in a box. What is the probability that the fruit selected at random from the box is an apple?

1) There are 2 apples in the box.
2) The ratio of the number of apples to the number of oranges is 1 to 4.

Only Apple (a) and Orrange (o) in the box.
1. Information only for a, nothing for o ------------>NS
2. a:o=1:4 ------------->Suff
say a=1 & o=4 , =>n=5 hence P(a) = $$\frac{a}{n}$$= $$\frac{1}{5}$$
or say a=2 & o=8 , hence P(a) = $$\frac{a}{n}$$= $$\frac{2}{10}$$= $$\frac{1}{5}$$

Thus Ans B
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Manager
Joined: 24 Jun 2013
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Re: There are only apples and oranges in a box. What is the probability  [#permalink]

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29 Mar 2018, 23:09
1 insuff as no info for O
2 A:O 1:4 given , therefore A:total = 1:5, this will be true for ny number of values satisfying A:O 1:4 , hence P(A) = A/total fruits
=1/5, hence suff
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Re: There are only apples and oranges in a box. What is the probability &nbs [#permalink] 29 Mar 2018, 23:09
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