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The Technotronic can produce 5 bad songs per hour. Wanting to produce

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Bunuel
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The Technotronic can produce 5 bad songs per hour. Wanting to produce [#permalink] New post   01 Jul 2019, 02:37
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The Technotronic can produce 5 bad songs per hour. Wanting to produce bad songs more quickly, the record label also buys a Wonder Wheel, which works as fast as the Technotronic. Working together, how many bad songs can the two produce in 72 minutes?

A. 9
B. 10
C. 11
D. 12
E. 13
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D
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Re: The Technotronic can produce 5 bad songs per hour. Wanting to produce [#permalink] New post   01 Jul 2019, 02:41
Bunuel wrote:
The Technotronic can produce 5 bad songs per hour. Wanting to produce bad songs more quickly, the record label also buys a Wonder Wheel, which works as fast as the Technotronic. Working together, how many bad songs can the two produce in 72 minutes?

A. 9
B. 10
C. 11
D. 12
E. 13


Technotronic can produce 5 bad songs per hour
--> 1 bad song per 60/5 = 12 min

Wonder Wheel also produces 1 bad song per 12 minutes

When working together, Both produce 2 bad songs per 12 minutes
--> In 72 minutes = 72/12*2 = 6*2 = 12 bad songs can be produced

IMO Option D

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Re: The Technotronic can produce 5 bad songs per hour. Wanting to produce [#permalink] New post   01 Jul 2019, 02:42
Bunuel wrote:
The Technotronic can produce 5 bad songs per hour. Wanting to produce bad songs more quickly, the record label also buys a Wonder Wheel, which works as fast as the Technotronic. Working together, how many bad songs can the two produce in 72 minutes?

A. 9
B. 10
C. 11
D. 12
E. 13


Both together produce 10 songs /hr
72 mins = 1.2 hr
Songs = 10 * 1.2 = 12 songs

IMO D
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Re: The Technotronic can produce 5 bad songs per hour. Wanting to produce [#permalink] New post   01 Jul 2019, 10:17
Bunuel wrote:
The Technotronic can produce 5 bad songs per hour. Wanting to produce bad songs more quickly, the record label also buys a Wonder Wheel, which works as fast as the Technotronic. Working together, how many bad songs can the two produce in 72 minutes?

A. 9
B. 10
C. 11
D. 12
E. 13



total songs per hr ; 10
and per min ; 10/60
and in 72 mins ; 72*10/60 ; 12
IMO D
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Re: The Technotronic can produce 5 bad songs per hour. Wanting to produce [#permalink]
01 Jul 2019, 10:17
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