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sahilkak
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Before noon on Wednesday,there was a certain number of hex nuts 14 Nov 2018, 04:25
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85% (01:12) correct 15% (01:34) wrong based on 123 sessions

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Before noon on Wednesday, there was a certain number of hex nuts in a bin. After a delivery at noon that day, the number of hex nuts in the bin increased by 30%. Which of the following could be the number of hex nuts in the bin after that delivery?

A. 5100
B. 5200
C. 5400
D. 5500
E. 5600­
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B
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pandeyashwin
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Before noon on Wednesday,there was a certain number of hex nuts 14 Nov 2018, 05:10
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x * 130/100 = k
or x = k * 100/130

check the options for the number divisible by 130.

Ans B
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KSBGC
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Before noon on Wednesday,there was a certain number of hex nuts 16 Nov 2018, 03:45
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sahilkak
Before noon on Wednesday, there was a certain number of hex nuts in a bin. After a delivery at noon that day, the number of hex nuts in the bin increased by 30%. Which of the following could be the number of hex nuts in the bin after that delivery?

5100
5200
5400
5500
5600
Show more


Let before noon the hex nuts be 100.

After delivery nuts increased to 130.

Therefore total no. of nuts must be divisible by 130.

Option B Matches.
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Before noon on Wednesday,there was a certain number of hex nuts 03 Aug 2019, 07:17
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sahilkak
Before noon on Wednesday, there was a certain number of hex nuts in a bin. After a delivery at noon that day, the number of hex nuts in the bin increased by 30%. Which of the following could be the number of hex nuts in the bin after that delivery?

5100
5200
5400
5500
5600
Show more

Let x = number of nuts BEFORE noon
So, x + (30% of x) =number of nuts AFTER noon
In other words, 1.3x = number of nuts AFTER noon

Now check the answer choices.....
A. 5100
This means 1.3x = 5100
If we divide both sides by 1.3, we get: x = 5100/1.3 = 3923.0769...
This means there were 3923.0769... hex nuts BEFORE noon.
Since the number of hex nuts must be a positive INTEGER, answer choice A is no good.

NOTE: The correct answer must be divisible by 1.3

Scan the answers......
B. 5200 = 13 x 400
So, 5200/1.3 = 4000 (a positive integer)
PERFECT!!

Answer: B

Cheers,
Brent
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Before noon on Wednesday,there was a certain number of hex nuts 11 Aug 2019, 19:31
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sahilkak
Before noon on Wednesday, there was a certain number of hex nuts in a bin. After a delivery at noon that day, the number of hex nuts in the bin increased by 30%. Which of the following could be the number of hex nuts in the bin after that delivery?

5100
5200
5400
5500
5600
Show more

If there were x hex nuts before the delivery, then there are 1.3x hex nuts after the delivery. Of all the numbers in the answer choices, only 5200 will make x an integer when 1.3x is set equal to:

1.3x = 5200

x = 5200/1.3 = 4000

Answer: B
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Before noon on Wednesday,there was a certain number of hex nuts 11 Apr 2024, 12:49
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IN these kindas of questions, how do we know that we have to assume the variable (here nuts) is the positive integer but not a fraction ?
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Bunuel
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Before noon on Wednesday,there was a certain number of hex nuts 12 Apr 2024, 00:30
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Rangerwarrior
Before noon on Wednesday, there was a certain number of hex nuts in a bin. After a delivery at noon that day, the number of hex nuts in the bin increased by 30%. Which of the following could be the number of hex nuts in the bin after that delivery?

A. 5100
B. 5200
C. 5400
D. 5500
E. 5600

­IN these kindas of questions, how do we know that we have to assume the variable (here nuts) is the positive integer but not a fraction ?
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In these types of questions, quantities of people, fruits, vegetables, etc., are assumed to be integers. Often this assumption is based on the practical context of the problem where dealing with parts of such countable items doesn't make much sense.­ For this particular question, if we don't assume that the number of nuts is an integer, then any answer could be correct, making the question flawed.
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Before noon on Wednesday,there was a certain number of hex nuts 11 Apr 2026, 21:15
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can you please explain the concept in this question, in detail?
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