From the question REMAINDERS
Mon, 14 Sep 2009 10:36:08 -0000
i didn’t got the significance of the lcm(11,13). n wha are u talking about base no or power?
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From the discussion number system
Mon, 07 Sep 2009 09:50:32 -0000
if we divide a no. by 5 we get remainder=2 so, no can be 5x+2 if we divide this no. by 7 we get remainder=3 so,(5x+2)=7y+3 so, x=(7y+1)/5 & y can be 2,7 & x can be 3,10 if we divide no by 8 we get remainder=4 5x+2=8z+4 so,above value of x shoud satisfy this condition z=(5x-2)/8 so only x=10 satisfies 3rd condition. so x=10 & no=[52]
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From the unknown
Answer questions on the basis of the information given below:
A class of 30 students comprises of boys who can play Cricket, Hockey and Football. 3 boys play only Cricket, 3 boys play only Hockey and 2 play only Football. 4 Boys could play all three games, while 11 could play Football and Cricket, and 10 boys could play football and Hockey.
How many boys played cricket and hockey but not football?Mon, 27 Jul 2009 08:32:22 -0000
plz explain or give any shortcut method.
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raj beniwal said – Fri, 31 Jul 2009 06:06:29 -0000
let football= F, cricket=C,hockey=H only H=3,only C =3, only F=2, as given F+C+H=4, now the total player who can play C+F=11, so the players who can play only C+F= 11-4=7. similarly, the players who can play only F+H=10-4=6. but we are given given total 30 players so the players who can play onlyC+H=30-(3+3+4+6+7+2)= 5. solved
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From the unknown
In a survey of 100 students it was found that 50 used the college library, 40 had their own library and 30 borrowed books. Of these 20 used both the library and their own, 15 used their own library and borrowed books and 10 used the college library and borrowed books. How many students used all the three sources of books?
Mon, 27 Jul 2009 08:18:38 -0000
i feel, it’s a lenghty method. Can we have some other shortcut method?
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From the unknown Result of which of the following will be lesser than one?
Fri, 24 Jul 2009 07:46:13 -0000
give us a shortcut to solve the prb.! thnk u!
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dilkumar said – Mon, 07 Sep 2009 11:15:12 -0000
hi dear i also tried it as u did…. but the answer is 5,5,2
dilkumar said – Mon, 07 Sep 2009 15:40:03 -0000
can u pls tell me wat is the meaning of ques. i am unable to understand this
deepa mittal said – Mon, 14 Sep 2009 05:51:31 -0000
On dividing a number successively by 5,7,8, the remainder obtained2,3,4 respectively
So, the number will be of the form: 5(7(8X+4)+3)+2
The question asks for what will be the remainder when the same number is divided successively by 8,7,5 ?
deepa mittal said – Mon, 14 Sep 2009 05:52:53 -0000
The answer is 5,5,2.