Lakshya Education MCQs

Question: An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If 4 marbles are picked up at random, what is the probability that at least one of them is blue?
Options:
A.$$\frac{4}{15}$$
B.$$\frac{69}{91}$$
C.$$\frac{11}{15}$$
D.$$\frac{22}{91}$$
E.None of these
Answer: Option B

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More Questions on This Topic :

Question 1. A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is-
  1.    $$\frac{1}{13}$$
  2.    $$\frac{2}{13}$$
  3.    $$\frac{1}{26}$$
  4.    $$\frac{1}{52}$$
Answer: Option C
Question 2. In a simultaneous throw of two coins, the probability of getting at least one head is-
  1.    $$\frac{1}{2}$$
  2.    $$\frac{1}{3}$$
  3.    $$\frac{2}{3}$$
  4.    $$\frac{3}{4}$$
Answer: Option D
Question 3. A bag contains 4 red balls, 6 blue balls and 8 pink balls. One ball is drawn at random and replaced with 3 pink balls. A probability that the first ball drawn was either red or blue in colour and the second drawn was pink in colour ?
  1.    $$\frac{12}{21}$$
  2.    $$\frac{13}{17}$$
  3.    $$\frac{11}{30}$$
  4.    $$\frac{13}{18}$$
  5.    None of these
Answer: Option E
Question 4. From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
  1.    $$\frac{1}{15}$$
  2.    $$\frac{25}{57}$$
  3.    $$\frac{35}{256}$$
  4.    $$\frac{1}{221}$$
Answer: Option D
Question 5. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3 ?
  1.    $$\frac{3}{10}$$
  2.    $$\frac{3}{20}$$
  3.    $$\frac{2}{5}$$
  4.    $$\frac{1}{2}$$
Answer: Option A
Question 6. A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
  1.    $$\frac{{3}}{{4}}$$
  2.    $$\frac{{4}}{{7}}$$
  3.    $$\frac{{1}}{{8}}$$
  4.    $$\frac{{3}}{{7}}$$
Answer: Option B

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