Probability - Aptitude MCQ Questions and Solutions with Explanations Page-14 section-1

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131.
When two coins are tossed simultaneously, what are the chances of getting at least one tail?

A. $$\frac{{4}}{{5}}$$

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

C. $$\frac{{3}}{{4}}$$

D. $$\frac{{1}}{{4}}$$

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132.
A box has 5 black and 3 green shirts. One shirt is picked randomly and put in another box. The second box has 3 black and 5 green shirts. Now a shirt is picked from second box. What is the probability of it being a black shirt?

A. $$\frac{{4}}{{9}}$$

B. $$\frac{{29}}{{72}}$$

C. $$\frac{{8}}{{72}}$$

D. $$\frac{{3}}{{16}}$$

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133.
In a set of 30 game cards, 17 are white and rest are green. 4 white and 5 green are marked IMPORTANT. If a card is chosen randomly from this set, what is the possibility of choosing a green card or an ‘IMPORTANT’ card?

A. $$\frac{{13}}{{30}}$$

B. $$\frac{{22}}{{30}}$$

C. $$\frac{{17}}{{30}}$$

D. $$\frac{{9}}{{13}}$$

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134.
Suresh keeps all his socks in a single drawer. He has 24 pairs of white socks and 18 pairs of grey socks. Suresh picks 3 socks randomly. Find the possibility of Suresh choosing a matching pair.

A. $$\frac{{1}}{{36}}$$

B. $$\frac{{1}}{{108}}$$

C. $$\frac{{7}}{{36}}$$

D. 1

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135.
In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

A. $$\frac{{4}}{{11}}$$

B. 1

C. $$\frac{{2}}{{33}}$$

D. $$\frac{{19}}{{66}}$$

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136.
A box has 6 black, 4 red, 2 white and 3 blue shirts. What is the probability that 2 red shirts and 1 blue shirt get chosen during a random selection of 3 shirts from the box?

A. $$\frac{{18}}{{455}}$$

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

C. $$\frac{{7}}{{435}}$$

D. $$\frac{{7}}{{2730}}$$

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137.
A pot has 2 white, 6 black, 4 grey and 8 green balls. If one ball is picked randomly from the pot, what is the probability of it being black or green?

A. $$\frac{{3}}{{4}}$$

B. $$\frac{{7}}{{10}}$$

C. $$\frac{{4}}{{3}}$$

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

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138.
In a drawer there are 5 black socks and 3 green socks. Two socks are picked randomly one after the other without replacement. What is the possibility that both the socks are black?

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

B. $$\frac{{5}}{{8}}$$

C. $$\frac{{3}}{{8}}$$

D. $$\frac{{5}}{{16}}$$

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139.
A box has 6 black, 4 red, 2 white and 3 blue shirts. What is probability of picking at least 1 red shirt in 4 shirts that are randomly picked?

A. $$\frac{{4}}{{15}}$$

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

C. $$\frac{{69}}{{91}}$$

D. $$\frac{{22}}{{91}}$$

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140.
A box has 6 black, 4 red, 2 white and 3 blue shirts. When 2 shirts are picked randomly, what is the probability that either both are white or both are blue?

A. $$\frac{{4}}{{105}}$$

B. $$\frac{{1}}{{35}}$$

C. $$\frac{{1}}{{105}}$$

D. $$\frac{{1}}{{15}}$$

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Probability - Aptitude MCQ Questions and Solutions with Explanations

131. When two coins are tossed simultaneously, what are the chances of getting at least one tail?

Answer & Solution

132. A box has 5 black and 3 green shirts. One shirt is picked randomly and put in another box. The second box has 3 black and 5 green shirts. Now a shirt is picked from second box. What is the probability of it being a black shirt?

Answer & Solution

133. In a set of 30 game cards, 17 are white and rest are green. 4 white and 5 green are marked IMPORTANT. If a card is chosen randomly from this set, what is the possibility of choosing a green card or an ‘IMPORTANT’ card?

Answer & Solution

134. Suresh keeps all his socks in a single drawer. He has 24 pairs of white socks and 18 pairs of grey socks. Suresh picks 3 socks randomly. Find the possibility of Suresh choosing a matching pair.

Answer & Solution

135. In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

Answer & Solution

136. A box has 6 black, 4 red, 2 white and 3 blue shirts. What is the probability that 2 red shirts and 1 blue shirt get chosen during a random selection of 3 shirts from the box?

Answer & Solution

137. A pot has 2 white, 6 black, 4 grey and 8 green balls. If one ball is picked randomly from the pot, what is the probability of it being black or green?

Answer & Solution

138. In a drawer there are 5 black socks and 3 green socks. Two socks are picked randomly one after the other without replacement. What is the possibility that both the socks are black?

Answer & Solution

139. A box has 6 black, 4 red, 2 white and 3 blue shirts. What is probability of picking at least 1 red shirt in 4 shirts that are randomly picked?

Answer & Solution

140. A box has 6 black, 4 red, 2 white and 3 blue shirts. When 2 shirts are picked randomly, what is the probability that either both are white or both are blue?

Answer & Solution

Read More Section(Probability)

131.
When two coins are tossed simultaneously, what are the chances of getting at least one tail?

132.
A box has 5 black and 3 green shirts. One shirt is picked randomly and put in another box. The second box has 3 black and 5 green shirts. Now a shirt is picked from second box. What is the probability of it being a black shirt?

133.
In a set of 30 game cards, 17 are white and rest are green. 4 white and 5 green are marked IMPORTANT. If a card is chosen randomly from this set, what is the possibility of choosing a green card or an ‘IMPORTANT’ card?

134.
Suresh keeps all his socks in a single drawer. He has 24 pairs of white socks and 18 pairs of grey socks. Suresh picks 3 socks randomly. Find the possibility of Suresh choosing a matching pair.

135.
In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

136.
A box has 6 black, 4 red, 2 white and 3 blue shirts. What is the probability that 2 red shirts and 1 blue shirt get chosen during a random selection of 3 shirts from the box?

137.
A pot has 2 white, 6 black, 4 grey and 8 green balls. If one ball is picked randomly from the pot, what is the probability of it being black or green?

138.
In a drawer there are 5 black socks and 3 green socks. Two socks are picked randomly one after the other without replacement. What is the possibility that both the socks are black?

139.
A box has 6 black, 4 red, 2 white and 3 blue shirts. What is probability of picking at least 1 red shirt in 4 shirts that are randomly picked?

140.
A box has 6 black, 4 red, 2 white and 3 blue shirts. When 2 shirts are picked randomly, what is the probability that either both are white or both are blue?