Probability - Aptitude MCQ Questions and Solutions with Explanations Page-11 section-1

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101.
What is the probability that a leap year has 53 Sundays and 52 Mondays?

A. $$\frac{{1}}{{7}}$$

B. $$\frac{{2}}{{7}}$$

C. $$\frac{{5}}{{7}}$$

D. $$\frac{{6}}{{7}}$$

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102.
A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -

A. $$\frac{{8}}{{15}}$$

B. $$\frac{{2}}{{5}}$$

C. $$\frac{{3}}{{5}}$$

D. $$\frac{{7}}{{15}}$$

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103.
A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?

A. $$\frac{{1}}{{455}}$$

B. $$\frac{{2}}{{455}}$$

C. $$\frac{{1}}{{91}}$$

D. $$\frac{{4}}{{455}}$$

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104.
In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

A. $$\frac{{5}}{{21}}$$

B. $$\frac{{5}}{{14}}$$

C. $$\frac{{9}}{{14}}$$

D. $$\frac{{16}}{{21}}$$

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105.
If a number is chosen at random from the set {1, 2, 3, ......., 100}, then the probability that the chosen number is a perfect cube is -

A. $$\frac{{1}}{{25}}$$

B. $$\frac{{1}}{{2}}$$

C. $$\frac{{4}}{{13}}$$

D. $$\frac{{1}}{{10}}$$

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106.
A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are drawn what is the probability that one is yellow and two are red?

A. $$\frac{{24}}{{455}}$$

B. $$\frac{{3}}{{91}}$$

C. $$\frac{{12}}{{455}}$$

D. $$\frac{{15}}{{91}}$$

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107.
From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is -

A. $$\frac{{1}}{{26}}$$

B. $$\frac{{3}}{{52}}$$

C. $$\frac{{15}}{{26}}$$

D. $$\frac{{11}}{{26}}$$

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108.
A coin is tossed live times. What is the probability that there is at the least one tail?

A. $$\frac{{31}}{{32}}$$

B. $$\frac{{1}}{{16}}$$

C. $$\frac{{1}}{{2}}$$

D. $$\frac{{1}}{{32}}$$

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109.
A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?

A. $$\frac{{3}}{{22}}$$

B. $$\frac{{4}}{{21}}$$

C. $$\frac{{2}}{{21}}$$

D. $$\frac{{1}}{{14}}$$

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110.
10 books are placed at random in a shelf. The probability that a pair of books will always be together is -

A. $$\frac{{1}}{{10}}$$

B. $$\frac{{9}}{{10}}$$

C. $$\frac{{1}}{{5}}$$

D. $$\frac{{3}}{{10}}$$

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Probability - Aptitude MCQ Questions and Solutions with Explanations

101. What is the probability that a leap year has 53 Sundays and 52 Mondays?

Answer & Solution

102. A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -

Answer & Solution

103. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?

Answer & Solution

104. In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

Answer & Solution

105. If a number is chosen at random from the set {1, 2, 3, ......., 100}, then the probability that the chosen number is a perfect cube is -

Answer & Solution

106. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are drawn what is the probability that one is yellow and two are red?

Answer & Solution

107. From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is -

Answer & Solution

108. A coin is tossed live times. What is the probability that there is at the least one tail?

Answer & Solution

109. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?

Answer & Solution

110. 10 books are placed at random in a shelf. The probability that a pair of books will always be together is -

Answer & Solution

Read More Section(Probability)

101.
What is the probability that a leap year has 53 Sundays and 52 Mondays?

102.
A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -

103.
A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?

104.
In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

105.
If a number is chosen at random from the set {1, 2, 3, ......., 100}, then the probability that the chosen number is a perfect cube is -

106.
A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are drawn what is the probability that one is yellow and two are red?

107.
From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is -

108.
A coin is tossed live times. What is the probability that there is at the least one tail?

109.
A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?

110.
10 books are placed at random in a shelf. The probability that a pair of books will always be together is -