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Bouquets are to be made using white tulips and red tulips, and the rat

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Bouquets are to be made using white tulips and red tulips, and the rat [#permalink]

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Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?

A. 3
B. 5
C. 8
D. 10
E. 13
[Reveal] Spoiler: OA

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Re: Bouquets are to be made using white tulips and red tulips, and the rat [#permalink]

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AbdurRakib wrote:
Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?

A. 3
B. 5
C. 8
D. 10
E. 13


Since we should use all the tulips available, then the number of bouquets must be a factor of both 15 and 85. For example, we cannot have 2 bouquets since we cannot divide 15 white tulips into 2 bouquets without one tulip left over.

The greatest common factor of 15 and 85 is 5.

Answer: B.
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Re: Bouquets are to be made using white tulips and red tulips, and the rat [#permalink]

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New post 16 Jun 2017, 04:54
Bunuel wrote:
AbdurRakib wrote:
Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?

A. 3
B. 5
C. 8
D. 10
E. 13


Since we should use all the tulips available, then the number of bouquets must be a factor of both 15 and 85. For example, we cannot have 2 bouquets since we cannot divide 15 white tulips into 2 bouquets without one tulip left over.

The greatest common factor of 15 and 85 is 5.

Answer: B.


Similar question to practice: https://gmatclub.com/forum/what-is-the- ... 67914.html
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

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Re: Bouquets are to be made using white tulips and red tulips, and the rat [#permalink]

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AbdurRakib wrote:
Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?

A. 3
B. 5
C. 8
D. 10
E. 13


Let's use some prime factorization...

We have 15 white tulips and 85 red tulips
15 = (3)(5)
85 = (5)(17)

So, for the white tulips, we can create 5 groups of 3 flowers
So, for the red tulips, we can create 5 groups of 17 flowers

This means we can create 5 BOUQUETS in which each bouquet has 3 red tulips and 17 white tulips
In other words, the ratio of red tulips to white tulips is the same for each bouquet (3 : 17).

Answer:
[Reveal] Spoiler:
B


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Re: Bouquets are to be made using white tulips and red tulips, and the rat [#permalink]

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New post 03 Jul 2017, 23:09
AbdurRakib wrote:
Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?

A. 3
B. 5
C. 8
D. 10
E. 13


w=3*5
R=17*5

As 3 and 17 are prime numbers .In addition,we have to maintain same ratio and use all the tulips available at the same time .
greatest number of bouquets that can be made using all the tulips=5

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Re: Bouquets are to be made using white tulips and red tulips, and the rat [#permalink]

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New post 07 Aug 2017, 10:05
AbdurRakib wrote:
Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?

A. 3
B. 5
C. 8
D. 10
E. 13


W Tulips = 15 = 5*3
R Tulips = 85 = 5*17
Both are multiples of 5
=> W Tulips : Red Tulips = 3 : 17 per bouquet.

So we can have 5 bouquets from the available tulips.
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Re: Bouquets are to be made using white tulips and red tulips, and the rat   [#permalink] 07 Aug 2017, 10:05
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