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CBSE Sample Papers for Class 12 Maths 2018 Set 7

January 29, 2017 by Sastry CBSE

CBSE Sample Papers for Class 12 Maths Solved 2018 Set 7

SECTION —A

Question numbers l to 6 carry 1 mark each
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-1

SECTION — B

Question numbers 7 to 19 carry 4 marks each.
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-2
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-3
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-4
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-5
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-6
19.A speaks truth 8 times out of 10 times. A dice is tossed. He reports that it was 5. What is the probability that it was actually 5 ?

SECTION — C

Question numbers 20 to 26 carry 6 marks each.
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-7
21.Find the equation of the line through the point P(3, 4) which cuts from the first quadrant a triangle of the minimum area. Also, find the area of the triangle.
CBSE Sample Papers for Class 12 Maths Solved 2016 Set 7-8
24.Show that the line joining the origin to the point (2,1,1) is perpendicular to the line determined by the points (3,5, -1), (4, 3, -1).

25.There are two types of fertilizers Fj and F2. Fj contain 10% nitrogen and 6% phosphoric acid and F2 consists of 5% of nitrogen and 10% phosphoric acid. After testing the soil conditions, a farmer finds that fie needs at least 14 kg of nitrogen and 14 kg of phosphoric acid for the crop. If F1 costs Rs 6/kg and F2 costs Rs 5/kg, determine how much of each type of fertilizer should be used so that nutrient requirements are meet at a minimum cost. What is the minimum cost ? What is the value ?

26.An electronic assembly consists of two subsystems say A and B. From the previous testing procedures, the following probabilities are assumed to be known :
P(A fails) = 0.2, P(B fails alone) = 0.15, P(A and B fail) = 0.15.
Evaluate the following probabilities :
i)P(A fails/ B has failed)
ii)P(A fails alone).

Filed Under: CBSE Tagged With: CBSE Class 12 Maths new pattern sample papers, CBSE Class 12 Maths sample paper CBSE Sample Question Papers for Class 12 Maths, CBSE Maths sample paper for Class 12, CBSE sample paper Class 12 Maths, Class 12 Maths sample paper, Maths sample paper Class 12, Maths sample paper Class 12 with solutions

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