#271
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Quote:
m<48/3 =m<16 and m>24/2 = m>12 it means value of m lies b/w 12-16 so it can be 13,14,15 only thats why option c.14 . (1) suppose a number=x number less than x is=x-1 so according to given condition x*(x-1)=(x*x)-4 x^2-x=x^2-4 from which we get x=4 (2) sorry about this question,i think data given is not sufficient |
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dua malik (Thursday, September 27, 2012) |
#272
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If the result obtained by multiplying a number, x, by a number 1 less
than itself is 4 less than multiplying x by itself, then x =? x(x-1)=(x*x)-4 x^2-x=x^2-4 -x=-4 x=4 |
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dua malik (Thursday, September 27, 2012) |
#273
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Now got your question,you have missed the power sign(use shift+6 to insert power sign) in question,
If (2^x).(2^y) = 3^z , find (x + y)/z=? solution: As bases are same so the exponents can be added together so 2^(x+y)=3^z here 2^1.585=3 so 2^(x+y)=2^(1.585*z) Now the bases are same then exponents can be compared x+y=1.585*z we get (x+y)/z=1.585
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dua malik (Thursday, September 27, 2012) |
#274
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still m confused about this quest solution how v get this here 2^1.585=3 ?? |
#275
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you know 2^1=2 and 2^2=4 so to make 3 ,power should be between 1 and 2.then try 2^1.5 it will b nearly equal to 3.so add some digits to 1.5 like 1.56 ,1.587 or 1.585 gives more accurate answer.if the question looks like 2^x=8^3 so here 2^x=2^(3*3) because (2^3=8) so bases are equal now x=9, hope now you understand.
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dua malik (Friday, September 28, 2012) |
#276
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Plz meri koi help kare ga...mera center islamabad hai..maine khushab se ana hai..tou Islamabad Model College for Girls F-10/2 Islamabad GOLRA shareef se kareeb paray ga ya phr PIR WIDHAI se?? plz any one tel me
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#278
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main GAT A ke baat kar raha hoon us main ye he pattern hota ha ab PPL main Kai Ho ga Koi Pata Ni
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Zahid Mahmood Bhatti |
#279
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How was your test friends.
I found the test easy , except the analytical portion , personally I found analytical very tough. and ti me consuming. Lets hope for the best. |
#280
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Test was relly a challenge especially for those who gave CAT-A.
i failed to complete all 40 analytical questions and guessed on 22 quesitons without reading...
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