Category: Class 12 Maths Solutions

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Rajasthan Board RBSE Class 12 Maths Chapter 15 Linear Programming Ex 15.2

Rajasthan Board RBSE Class 12 Maths Chapter 15 Linear Programming Ex 15.2 Question 1. A dietician wishes to mix two types of foods in such a way that vitamin contents of the mixture contain atleast 8 units of vitamin A and 10 units of vitamin C. Food I contains 2 units/kg of vitamin A and…
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Rajasthan Board RBSE Class 12 Maths Chapter 1 संयुक्त फलत Ex 1.1

Rajasthan Board RBSE Class 12 Maths Chapter 1 संयुक्त फलत Ex 1.1 प्रश्न 1. यदि f : R→R तथा g : R→R दो फलन निम्न प्रकार से परिभाषित हों, तो (fog)(x) तथा (gof)(x) ज्ञात कीजिए : (i) f(x) = 2x + 3, g(x) = x² + 5 (ii) f(x) = x² + 8, g(x) = 3×3…
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Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Miscellaneous Exercise

Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Miscellaneous Exercise Question 1. Two events A and B are said to be mutually independent, if: Solution: Given A and B two independent events Hence option (iii) is correct Question 2. Two dice are thrown. The probability of getting a pair of even…
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Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.5

Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.5 Question 1. If a fair coin is tossed 10 times, then find the probabilities of the following; (i) exactly 6 heads ? (ii) atleast 6 heads ? (iii) atmost 6 heads ? Solution: (i) A fair coin is tossed 10 times…
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Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.4

Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.4 Question 1. Find which of the following probability distribution is possible for a random variable : Solution: (i) Sum of probabilities = 0.4 + 0.4 + 0.2 = 1 Hence, given distribution is a probability distribution. (ii) Sum of probabilities =…
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Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.3

Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.3 Question 1. Given there are two bags I and II. Bag I contains 3 red and 4 black bails while another bag II contains S red and 6 black balls. One ball is drawn at random from one of the bags and…
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Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.2

Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.2 Question 1. If A and B be two events such that P(A) = ; = P(B) = and P(A ∩ B) = , then find . (1 – P(A)] = P(B) PĀ) = P(Ā)P(B) Solution: Given: Question 2. If P(A) = 0.4,…
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Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.1

Rajasthan Board RBSE Class 12 Maths Chapter 16 Probability and Probability Distribution Ex 16.1 Question 1. If and P(A∩B) = , then find p(). Solution: We know that Question 2. If P(B) = 0.5 and P(A ∩ B) = 0.32, then find p(). Solution: Question 3. If 2P(A) = P(B) = and P() = , then…
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Rajasthan Board RBSE Class 12 Maths Chapter 15 Linear Programming Miscellaneous Exercise

Rajasthan Board RBSE Class 12 Maths Chapter 15 Linear Programming Miscellaneous Exercise Solve the following linear programming problem by graphical method : Question 1. Maximize Z = 4x + y Subject to the constraints, x + y ≤ 50 3x + y ≤ 90 and x ≥ 0, y ≥ 0 Solution: Converting the given…
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Rajasthan Board RBSE Class 12 Maths Chapter 15 Linear Programming Ex 15.1

Rajasthan Board RBSE Class 12 Maths Chapter 15 Linear Programming Ex 15.1 Solve the following linear programming problem by graphical method : Question 1. Minimize Z = -3x + Ay subject to the constraints x + 2y ≤ 8 3x + 2y ≤ 12 and x ≥ 0, y ≥ 0 Solution: Converting the given…
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