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How long will it take machine M to fill an order for x widgets if the

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How long will it take machine M to fill an order for x widgets if the  [#permalink]

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New post 19 Feb 2018, 23:20
2
5
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A
B
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Difficulty:

  25% (medium)

Question Stats:

67% (01:07) correct 33% (01:14) wrong based on 210 sessions

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How long will it take machine M to fill an order for x widgets if the machine operates at a constant rate and operation is not interrupted?

(1) The machine produces 150 widgets per minute.

(2) At the end of 2 hours, the machine has produced 40% of the widgets needed to fill the order.

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Joined: 07 Jan 2016
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GMAT 1: 710 Q49 V36
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Re: How long will it take machine M to fill an order for x widgets if the  [#permalink]

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New post 20 Feb 2018, 03:38
Bunuel wrote:
How long will it take machine M to fill an order for x widgets if the machine operates at a constant rate and operation is not interrupted?

(1) The machine produces 150 widgets per minute.

(2) At the end of 2 hours, the machine has produced 40% of the widgets needed to fill the order.



Statement a gives no information about quantity of X widgets - insufficient

Statement b states that 40% of x is completed in 2 hrs and the question asked is about time and it's stated that he machine operates at a constant rate and operation is not interrupted

sufficient

(B) imo
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Re: How long will it take machine M to fill an order for x widgets if the  [#permalink]

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New post 14 Oct 2018, 03:59
Bunuel wrote:
How long will it take machine M to fill an order for x widgets if the machine operates at a constant rate and operation is not interrupted?

(1) The machine produces 150 widgets per minute.

(2) At the end of 2 hours, the machine has produced 40% of the widgets needed to fill the order.



Responding to a PM..

Information given
1. Constant rate
2. x widgets


(1) The machine produces 150 widgets per minute.
So we know the speed but nothing about X
Insufficient

(2) At the end of 2 hours, the machine has produced 40% of the widgets needed to fill the order.
So in 2 hrs, work done = \(x*\frac{40}{100}\)=0.4x
Thus 0.4x is produced in 2 hrs
So x in \(\frac{2}{0.4}\)=5 hrs
Sufficient

B
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Re: How long will it take machine M to fill an order for x widgets if the   [#permalink] 14 Oct 2018, 03:59
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