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Old December 27th, 2013, 11:41 AM
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I need the Previous years question papers of class 12th CBSE of Maths, can you provide me the same???

As you want I am here providing you sample paper of the class 12th CBSE of Mathematics.

Sample questions:

The sides of an equilateral triangle are increasing at the rate of 2 cm/sec.
Find the rate at which the area increases, when the side is 10 cm.


A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, 20, 16,
18, 20, 17, 16, 19 and 20 years. One student is selected in such a manner
that each has the same chance of being chosen and the age X of the
selected student is recorded. What is the probability distribution of the
random variable X ? Find the mean of X.


An urn contains 4 balls. Two balls are drawn at random from the urn
(without replacement) and are found to be white. What is the probability
that all the four balls in the urn are white ?
OR
In a game, a man wins rupees five for a six and loses rupee one for any
other number, when a fair die is thrown. The man decided to throw a die
thrice but to quit as and when he gets a six. Find the expected value of
the amount he wins/loses.








Here is the attachment of sample paper of class 12th CBSE of Maths.
Attached Files Available for Download
File Type: pdf sample paper of class 12th CBSE of Maths-1.pdf (226.4 KB, 29 views)
File Type: pdf sample paper of class 12th CBSE of Maths-2.pdf (227.9 KB, 45 views)

Last edited by Aakashd; June 26th, 2019 at 12:08 PM.
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  #2  
Old December 27th, 2013, 12:43 PM
Super Moderator
 
Join Date: Jun 2013
Default Re: Previous years question papers of class 12th CBSE of Maths

As you need the Previous years question papers of class 12th CBSE of Maths, here I am uploading a PDF file that contains the same. This attachment contains both objective and descriptive types of the questions. Following questions has been taken from the attachment:

A manufacturer produces nuts and bolts. It takes 1 hour of work on machine A and
3 hours on machine B to produce a package of nuts. It takes 3 hours on machine A
and 1 hour on machine B to produce a package of bolts. He earns a profit of 3 17.50
per package on nuts and 7 7 per package of bolts. How many packages of each
should be produced each day so as to maximize his profits if he operates his
machines for at the most 12 hours a day ? Form the above as a linear programming
problem and solve it graphically.
Prove that J (Kx + G x ) d x = .5
0
Evaluate ((2x2 + 5x)dx as a limit of a sum.
Using the method of integration, find the area of the region bounded by the lines
3x-2y+ 1 =0,2~+3y-21=Oandx-5y+9=0.
28. ~ % ~ ~ ~ - d i z &m*m*miS. I
Show that the height of a closed right circular cylinder of given surface and
maximum volume, is equal to the diameter of its base.

Rests of the questions are in the attachment, please click on it…..
Attached Files Available for Download
File Type: pdf Previous years question papers of class 12th CBSE of Maths.pdf (475.9 KB, 113 views)
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