Event and Outcome

Q.

There is a pack of 52 cards. Ram removes the queen of hearts and the jack of spades from this pack. Ram now picks a card at random from this reduced pack. What is the probability that Ram picks is a Jack card?

1. 0.03

2. 0.07

3. 0.05

4. 0.06

Q.

From a pack of 52 cards, all the multiples of 3 are removed. A card is now drawn at random. What is the probability that it is a

(i) a face card ( King , Queen , Jack)

(ii) an even number red card

1. 0.3 , 0.5

2. 0.4 , 0.5

3. 0.3 , 0.25

4. 0.5 , 0.4

Q. A whole number is added to $49$ and the same number is subtracted from $49$. The sum of the resulting numbers is

1. $0$
2. $49$
3. $50$
4. $98$

Q. A student has to review a subject before his exams. If the number of topics covered is directly proportional to numbers of hours taken and If he covers 9 topics in a single 45-minute period, how many topics can he cover in a 1-hour period?

1. 7
2. 10
3. 12
4. 5

Q. The number of mushrooms needed for 1 burger is 4 more than that of onions. If n represents the number of onions needed for 1 burger, which of the following gives the number of mushrooms needed for 5 burgers?

1. 4(n + 5)
2. 5(n + 4)
3. n + 4
4. n + 5

Q.

Total number of outcomes, when a ball is drawn from a bag which contains $3$ red, $5$ black and $4$ blue balls is

1. $8$

2. $7$

3. $9$

4. $12$

Q. Find out the error in each of the following sentences, if any. If there is no error, your answer is 'E'.
The Government warned the shopkeepers that if (A) they persisted in (B) charging high prices, their (C) licences would be cancelled. (D) No Error.(E)

1. A
2. B
3. C
4. D
5. E

Q. In which event, the experiment is impossible?

1. Tossing a coin for head or tail
2. $5$ in case of throwing a dice.
3. Rolling a dice for $7$.
4. Tossing a coin to get a tail.

Q. The number of mushrooms needed for 1 burger is 4 more than that of onions. If n represents the number of onions needed for 1 burger, which of the following gives the number of mushrooms needed for 5 burgers?

1. 4(n + 5)
2. 5(n + 4)
3. n + 4
4. n + 5