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If Machine M is required to make 3,000 items and machine N is required

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If Machine M is required to make 3,000 items and machine N is required  [#permalink]

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New post 03 Oct 2018, 02:52
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Question Stats:

53% (01:34) correct 47% (01:40) wrong based on 47 sessions

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If Machine M is required to make 3,000 items and machine N is required to make 4,000 items, which of the two machines will finish earlier than the other, when both work at their respective constant rates?

1) Machine N can make 1,000 more units than M per hour

2) N's work rate is twice that of M
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Re: If Machine M is required to make 3,000 items and machine N is required  [#permalink]

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New post 03 Oct 2018, 03:03
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philipssonicare wrote:
If Machine M is required to make 3,000 items and machine N is required to make 4,000 items, which of the two machines will finish earlier than the other, when both work at their respective constant rates?

1) Machine N can make 1,000 more units than M per hour

2) N's work rate is twice that of M


Question: Which machine finished work earlier than the other machine?

Statement 1: Machine N can make 1,000 more units than M per hour
Case 1: N makes 2000 per hour and M makes 1000 per hour i.e. M takes 3 hours and N take 2 hours to finish their work
Case 2: N makes 4000 per hour and M makes 3000 per hour i.e. M takes 1 hours and N take 1 hours to finish their work
NOT SUFFICIENT

Statement 2: N's work rate is twice that of M

i.e. When N makes 4000 Products then M makes 2000 i.e. N always makes 4000 product in a time less than the time taken by M to make 3000 parts.
SUFFICIENT

Answer: Option B
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Re: If Machine M is required to make 3,000 items and machine N is required &nbs [#permalink] 03 Oct 2018, 03:03
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