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Re: MATHS QUIZ

Posted: 16 Aug 2012, 17:42
by mehjabeen
salaam,
bro abuali is wrong [down]
\/p^2+d^2 is not same as p+d
bodmas rule
post another question!!!!!!!!!!!!!!!!!!! :biggrin:

Re: MATHS QUIZ

Posted: 16 Aug 2012, 21:57
by abuali
Thanks.

I made a mistake in the last step.

So here is my question:

Which number, when divided by any number between 1 and 10 gives a whole number?

Re: MATHS QUIZ

Posted: 18 Aug 2012, 12:55
by mehjabeen
salaam,
the answer is 362880

Re: MATHS QUIZ

Posted: 20 Aug 2012, 01:00
by abuali
Alaykum Salaam

Slightly modified question:

Which is the smallest whole number, which when divided by any number between 1 - 10, would give a whole number?

Although 362880 gives a whole number when divided by any number between 1 - 10, it is not the smallest number with this property.

Re: MATHS QUIZ

Posted: 21 Aug 2012, 22:41
by qamar
wasn't a similar question asked to imam ali as.

Re: MATHS QUIZ

Posted: 26 Aug 2012, 22:59
by abuali
2520 is Image

The interesting thing is, its very difficult to get to this number using mathematics.

The following incident is of particular interest:
One Day a person came to Ali (A.S.), thinking that since Ali thinks he is too smart, I'll ask him such a tough question that he won't be able to answer it and I'll have the chance to embarrass him in front of all the Arabs.

He asked "Ali, tell me a number, that if we divide it by any number from 1-10 the answer will always come in the form of a whole number and not as a fraction."

Hazrat Ali(as) Looked back at him and said, "Take the number of days in a year and multiply it with the number of days in a week and you will have your answer."

The person got astonished but as he was a Mushrik he still didn't believe Ali (A.S.). He calculated the answer Ali (AS) gave him. To his amazement he came across the following results:
The number of Days in a Year = 360 (in Arabic Calendar)

The Number of Days in a Week = 7

The product of the two numbers = 2520

Now ... 2520 / 1 = 2520

2520 / 2 = 1260

2520 / 3 = 840

2520 / 4 = 630

2520 / 5 = 504

2520 / 6 = 420

2520 / 7 = 360

2520 / 8 = 315

2520 / 9 = 280

2520 / 10= 252

Re: MATHS QUIZ

Posted: 26 Aug 2012, 23:28
by Muhammad Mahdi
LCM of first 10 numbers

Re: MATHS QUIZ

Posted: 27 Aug 2012, 09:07
by abuali
I meant its difficult to get to this number mathematically as quick as the imam did.

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Re: MATHS QUIZ

Posted: 27 Aug 2012, 18:55
by mehjabeen
In 2004 Colin had a salary of $7200.In 2006 his salary increased to $8100.
Calculate the percentage increase from 2004 to 2006.???????????
easy neh!!!!!!!!!!!! :biggrin:

Re: MATHS QUIZ

Posted: 29 Aug 2012, 21:50
by qamar
12,5%

Re: MATHS QUIZ

Posted: 30 Aug 2012, 01:00
by mehjabeen
yes u r right!please post your next question

Re: MATHS QUIZ

Posted: 27 Jul 2013, 20:24
by qamar
write the next whole number after 9999

Re: MATHS QUIZ

Posted: 17 Sep 2013, 03:39
by fsl96
10,000 :P
hope m i right :D

Re: MATHS QUIZ

Posted: 04 Jun 2021, 10:30
by Zoha Fatema Mirza
Omg thats a beautiful story...our aimmah were so knowledgeable!!