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# MCQ in English Answers for CBSE Maths 12 Science Three Dimensional Geometry

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

Expert Teacher provides MCQ Answers for CBSE Maths 12 Science Three Dimensional Geometry through Video Answers in English language. 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 Three Dimensional Geometry 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:

## Similar Questions from CBSE, 12th Science, Maths, Three Dimensional Geometry

Question 1 : Find the equation of the plane passing through the line of intersection of the planes x + y + z = 1 and 2x + 3y + 4z = 5 which is perpendicular to the plane x - y + z = 0. Also, find the distance of the plane obtained above from the origin. (View Answer Video)

Question 2 : Find the equation of the plane passing through the line of intersection of the planes   and   which is perpendicular to the plane  . (View Answer Video)

Question 3 : If lines and    intersect, then find the value of k and hence find the equation of plane containing these lines. (View Answer Video)

Question 4 : Find the distance between the point (-1, -5, -10) and the point of intersection of line and plane

Question 5 : If the equation of a line AB is  then, find the direction cosines of a line parallel to AB. (View Answer Video)

### Probability

Question 1 : A bag A contains 4 black and 6 red balls and bag B 7 black and 3 red balls. A die is thrown. If 1 or 2 appears on it, then bag A is chosen, otherwise bag B. It two balls are drawn at random (without replacement) from the selected bag, find the probability of one of them being red and another black.        (View Answer Video)

Question 2 :  A bag contains 3 red and 7 black balls. 2 balls are selected at random one by one without replacement. If the second selected ball happens to be red, what is the probability that the first selected ball is also red?   (View Answer Video)

Question 3 : A problem in mathematics is given to 4 students A, B, C, D. Their chances of solving the problem, respectively, are   and . What is the probability that atmost one of them solve the problem?  (View Answer Video)

Question 4 :  A and B throw a pair of dice alternatively, till one of them gets a total of 10 and wins the game. Find their respective probabilities of winning, if A starts first.   (View Answer Video)

Question 5 : Of the students in a college, it is known that 60% reside in hostel and 40% are day scholars (not residing in hostel). Previous year results report that 30% of all students who reside in hostel attain  'A' grade and 20% of day scholars attain 'A' grade in their annual examination. At the end of the year, one student is chosen at random from the college and he has an 'A' grade. What is the probability that the student is a hosteler?   (View Answer Video)

### Application of Integrals

Question 1 : A farmer has a field of shape bounded by and x = 3, he wants to divide this into his two sons equally by a straight line x = c. Can you find c? What value, you find in the person ? (View Answer Video)

Question 2 : Using integration find the area of region bounded by the triangle whose vertices are (-1, 0), (1, 3) and (3, 2). (View Answer Video)

Question 4 :

Find the area of the given curves and given lines:
and x-axis

Question 5 : Find the area of the region bounded by the parabola  and y = | x |. (View Answer Video)