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Diane find that 5/2 cans of paint are just enough to paint 1/3 of her

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Diane find that 5/2 cans of paint are just enough to paint 1/3 of her  [#permalink]

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New post 08 Jan 2019, 00:00
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D
E

Difficulty:

  65% (hard)

Question Stats:

43% (00:50) correct 57% (01:02) wrong based on 14 sessions

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Diane find that 5/2 cans of paint are just enough to paint 1/3 of her room. How many more cans of paint will she need to finish her room and paint a second room of the same size?

A. 5
B. 15/2
C. 10
D. 25/2
E. 15

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Re: Diane find that 5/2 cans of paint are just enough to paint 1/3 of her  [#permalink]

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New post 08 Jan 2019, 00:15
Bunuel wrote:
Diane find that 5/2 cans of paint are just enough to paint 1/3 of her room. How many more cans of paint will she need to finish her room and paint a second room of the same size?

A. 5
B. 15/2
C. 10
D. 25/2
E. 15


IMO answer is D

Given 1/3 room is painted by 5/2 cans of paint
remaining 2/3 room will be painted by 5 cans of paint

Now,How many more cans of paint will she need to finish her room and paint a second room of the same size
=> 5 + 5/2 + 5
=> 25/2
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Re: Diane find that 5/2 cans of paint are just enough to paint 1/3 of her  [#permalink]

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New post 08 Jan 2019, 01:26
Bunuel wrote:
Diane find that 5/2 cans of paint are just enough to paint 1/3 of her room. How many more cans of paint will she need to finish her room and paint a second room of the same size?

A. 5
B. 15/2
C. 10
D. 25/2
E. 15


5/2 can to finish 1/3 room
so 1 room
5/2 / 1/3 = 15/2
and 2/3 of room
15/2 * 2/3 = 5

total required 15/2 + 5
25/2 IMO D
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Re: Diane find that 5/2 cans of paint are just enough to paint 1/3 of her &nbs [#permalink] 08 Jan 2019, 01:26
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Diane find that 5/2 cans of paint are just enough to paint 1/3 of her

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