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y=5*6*14*15

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y=5*6*14*15 [#permalink] New post   11 Oct 2022, 10:15
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Question Stats:

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\(y=5*6*14*15\)

Quantity A
Quantity B
Remainder when y is divided by 18
Remainder when y is divided by 40



A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.


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B
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GREfocus
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y=5*6*14*15 [#permalink] New post   Updated on: 11 Oct 2022, 19:59
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Quantity A
R= (5•6•14•15)/18
R= (6•15•5•14)/18
R= (90 • 70)/18
R= (60/18) = (54+6)/18
R = 6. Remainder 6

Quantity B
R= (6•15•5•14)/40
R= (90•60)/40
R/10 = (9•6)/4 = (52+2)/4
Now R = 2 but divided by 10 earlier
So Rx 10 = 20. Remainder 20

Quantity B is the answer

But seniors here how about a calculator on this question is it advisable ?

Posted from my mobile device

Originally posted by GREfocus on 11 Oct 2022, 11:42.
Last edited by GREfocus on 11 Oct 2022, 19:59, edited 1 time in total.
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mangosdel
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y=5*6*14*15 [#permalink] New post   11 Oct 2022, 19:07
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GREfocus wrote:
Quantity A
R= (5•6•14•15)/18
R= (6•15•5•14)/18
R= (90 • 60)/18
R= (60/18) = (54+6)/18
R = 6. Remainder 6

Quantity B
R= (6•15•5•14)/40
R= (90•60)/40
R/10 = (9•6)/4 = (52+2)/4
Now R = 2 but divided by 10 earlier
So Rx 10 = 20. Remainder 20

Quantity B is the answer

But seniors here how about a calculator on this question is it advisable ?

Posted from my mobile device


Isn't 5*14 = 70? and it would be 16 but still less than the Quantity B remainder.
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y=5*6*14*15 [#permalink]
11 Oct 2022, 19:07
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