Maths Probability CBSE 12 Science MCQ in English Answers to enable students to get Answers in a narrative video format for the specific question.

Expert Teacher provides Maths Probability CBSE 12 Science MCQ English Answers. This video solution will be useful for students to understand how to write an answer in exam in order to score more marks. This teacher uses a narrative style for a question from Probability not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Answer in a narrative video format.

** Question:**

** Answer Video in** **English****:**

You can select video Answers from other languages also. Please check Answers in ( Hindi )

**Question 1** : A man is known to speak the truth 3 out of 5 times. He throws a die and reports that it is 1. Find the probability that it is actually 1. (View Answer Video)

**Question 2** : One card is drawn from a pack of 52 cards. Find the probability of getting a black face card: (View Answer Video)

**Question 3** : Compute P(A/B) if P(B) =0.5 and P(AB)=0.32. (View Answer Video)

**Question 4** : If P(F) = 0.35 and =0.85 and E and F are independent events. Find P(E). (View Answer Video)

**Question 5** : An experiment succeeds thrice as often as it fails. Find the probability that in the next trials, there will be atleast 3 successes. (View Answer Video)

**Question 1** : Find the area of the triangle with vertices at the points (-2, -3), (3, 2), (-1, -8). (View Answer Video)

**Question 2** : If the area of a triangle is 35 sq units with vertices (2, -6), (5, 4) and (k, 4). Then k is: (View Answer Video)

**Question 3** : If a, b, c are in AP, then determinant . (View Answer Video)

**Question 4** : Find the area of the triangle with vertices at the points (2, 7), (1, 1), (10, 8). (View Answer Video)

**Question 5** : Evaluate the determinant: . (View Answer Video)

**Question 1** : Find a vector in the direction of vector which has magnitude 21 units. (View Answer Video)

**Question 2** : Find the scalar quantities from the following:

(i) 10 kg (ii) 2 m north-west (iii)

(iv) 40 W (v) (vi) (View Answer Video)

**Question 3** : Find the unit vector in the direction of vector PQ, where P and Q are the points (1, 2, 3) and (4, 5, 6) respectively. (View Answer Video)

**Question 4** : Find the direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1), directed from A to B. (View Answer Video)

**Question 5** : Find |x|, if for a unit vector a,(x - a).(x + a) = 12. (View Answer Video)

**Question 1** : Solve for

(View Answer Video)

**Question 2** : Solve the equation for (View Answer Video)

**Question 3** : If then find the value of x. (View Answer Video)

**Question 4** : then find the value of x. (View Answer Video)

**Question 5** : Evaluate :

(View Answer Video)