12 Science CBSE Solutions for MCQ Maths Probability in English

Similar Questions from CBSE, 12th Science, Maths, Probability

Question 1 : 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 2 :  Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls. Two balls are transferred at random from Bag I to Bag II and then a ball is drawn from Bag II.  The ball so drawn is found to be red in colour. Find the probability that the transferred balls were both black.   (View Answer Video)

Question 3 : A die is thrown 6 times. If 'getting an odd number' is a 'success', what is the probability of obtaining:
 exactly 5 successes?
  (View Answer Video)

Question 4 : Three cards are drawn without replacement from a pack of 52 cards. Find the probability that the cards drawn are king, queen and jack.
   (View Answer Video)

Question 5 : A die is thrown 6 times. If 'getting an odd number' is a 'success', what is the probability of obtaining:
atmost 5 successes? (View Answer Video)

Questions from Other Chapters of CBSE, 12th Science, Maths

Relations and Functions

Question 1 : Let  be defined as f(x) = 3x. Choose the correct answer. (View Answer Video)

Question 2 :  If f is the greatest integer function and g is the modulus function . Write the value of g o f(-1/3) – f o g ( -1/3 ) . (View Answer Video)

Question 3 : If f(x) = |x| and g(x) = | 5x – 2 |. Then, fog = _____. (View Answer Video)

Question 4 :  Let R be the relation on the set {1, 2, 3, 4} given by R = {(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3,3), (3,2)}. then R is, (View Answer Video)

Question 5 : Number of binary operations on the set {a, b} are : (View Answer Video)

Application of Derivatives

Question 1 : The rate of change of the area of a circle with respect to its radius r at r=6cm is: (View Answer Video)

Question 2 : The total revenue in rupees received from the sale of x units of a product is given by . The marginal revenue, when x=15 is: (View Answer Video)

Question 3 : The slope of the tangent to the curve  at the point (2,-1) is _______________. (View Answer Video)

Question 4 : The total cost C(x) (in Rs) associated with the production of 'x' units of an item is given by :
C (x)=0.005x³-0.02x²+30x+5000.
 Find the marginal cost when 3 units are produced, where by marginal cost we mean the instantaneous rate of change of total cost at any level of output. (View Answer Video)

Question 5 : The total revenue (in Rs) received from the sale of 'x' units of a product is given by :
R(x) =3x²+36x+5.
FInd the marginal revenue when x=5, where by marginal revenue we mean the rate of change of total revenue with respect to the number of items sold at an instant. (View Answer Video)

Application of Integrals

Question 1 : Find the area of the region bounded by the curve  and the line x = 3. (View Answer Video)

Question 2 : Area lying in the first quadrant and bounded by the circle  and the lines x =0 and x = 2 is (View Answer Video)

Question 3 : Find the area of the region in the first quadrant enclosed by x-axis, line  and the circle  (View Answer Video)

Question 4 :

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

(View Answer Video)

Question 5 : Using integration, find the area of the triangle formed by a positive x-axis and tangent and normal to the circle  at . (View Answer Video)