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Sai Pranav Ganesh asks : I request class 2 math, science and computer science model test papers? Can you kindly help me?

Tag : math,request,papers,model,kindly,test,science,computer,math

Category : Math | On : 22/06/2009 03:27:12

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Isha says :

22/06/2009 09:15:48

sorry they have papers from class 3rd onwards

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Shubhayan Chakraborty asks : If we mix up two matters of same mass & there density is d1 & d2,then what is the density of the mixture? kindly reply me the answer of the said question.

Tag : mixture,kindly,density,answer,matters,reply,question

Category : Engineering Entrance | On : 03/06/2009 01:01:55

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Subrata gupta says :

06/03/2010 11:44:28

the density of the mixture is 2(d1.d2)/(d1+d2). Explanation :Let mass of two matters is M , as the mass r same, volume of the two matter is M/d1 & M/d2 ; Therefore total volume = M ( 1/d1 + 1/d2 ),total mass = 2M , So, Density of the mixture is 2 (d1 d2 )/(d1+d2).

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Manish Thakur asks : what is the procedure for taking test given by you.i have attemted 35 out of 50 question in 15 min.,33was right as it was showing by green tick indication,but i ve got total marks of wrong answer .so kindly tell me the right procedure to take test.