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3 Deadly Mistakes you must avoid in LCM-GCD Questions

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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   28 Mar 2019, 00:49
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Hey Everyone,



We've added 3 new practice questions in which you can apply your learnings of Number Properties.

Exercise Questions

Question 1

Question 2

Question 3


Detailed solutions will be posted soon.


Happy Learning! :)
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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   31 Mar 2019, 22:12
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Hey Everyone,

We have posted the official solutions to the practice questions.

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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   03 Apr 2019, 21:30
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Hey Everyone,



We've added 3 new practice questions in which you can apply your learnings of Statistics.

Exercise Questions

Statistics Question 1

Statistics Question 2

Statistics Question 3


Detailed solutions will be posted soon.


Happy Learning! :)
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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   07 Apr 2019, 06:15
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Hey Everyone,

We have posted the official solutions to the Statistics practice questions.

Regards,
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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   10 Apr 2020, 21:11
Why the product of two number a and b equal to the product of gcd(a,b) and lcm(a,b)
Let say a and b are kp and kq where k is the hcf of a and b, also then a and b becomes co- prime so lcm becomes kab
Now product of two numbers = kp×kq
Product of hcf and lcm = k ×kab
Therefore product of two numbers is always equal to product of hcf and lcm

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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   10 Apr 2020, 21:12
Why the product of two number a and b equal to the product of gcd(a,b) and lcm(a,b)
Let say a and b are kp and kq where k is the hcf of a and b, also then a and b becomes co- prime so lcm becomes kab
Now product of two numbers = kp×kq
Product of hcf and lcm = k ×kab
Therefore product of two numbers is always equal to product of hcf and lcm

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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   14 Apr 2020, 23:36
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Hey Everyone,



We've added a couple of new practice questions in which you can apply your learnings of LCM-GCD.

Exercise Questions

Question 1

Question 2

If you have got any question wrong, please click on the image provided below, which explains the importance of Process Skills in mastering GMAT Quant.

Detailed solutions will be posted soon.

Happy Learning! :)

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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   01 Feb 2022, 22:36
HCF for more than 2 numbers, I have been using the school method and it works fine ( and fast).
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HCF of more than 2 numbers.pdf [346.9 KiB]
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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink] New post   22 Apr 2024, 23:12
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Re: 3 Deadly Mistakes you must avoid in LCM-GCD Questions [#permalink]
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