probability questions Practice Question and Answer
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5eaba97f1cb95f071aa29069 5 Q:
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5e8476a0108c8a572abc1e51
Q: There are some coins and rings of either gold or silver in a box. 60% of the objects are coins, 40% of the rings are of gold and 30% of the coins are silver. What is the percentage of gold articles?
1508 05ed4a0765ccf7008ed88e29f
5ed4a0765ccf7008ed88e29f- 158true
- 227false
- 316false
- 470false
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Answer : 1. "58"
Q: In how many different ways can the letters of the word 'NATIONAL' be arranged?
2248 05eb012adcaa4f678cf75b341
5eb012adcaa4f678cf75b341- 16720false
- 25040false
- 310080true
- 41020false
- 53360false
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Answer : 3. "10080 "
Q: In a bag there are 4 white, 4 red and 2 green boxes. Two boxes are drawn at random. What is the probability that at least one boxes is of red colour?
1761 05eaba97f1cb95f071aa29069
5eaba97f1cb95f071aa29069- 1$${4\over3}$$false
- 2$${7\over3}$$false
- 3$${1\over3}$$false
- 4$${2\over3}$$true
- 5None of thesefalse
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Answer : 4. "$${2\over3}$$"
Q: From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
1175 05e8477896796e957234ed2bc
5e8477896796e957234ed2bc- 1$$ 1\over15$$false
- 2$$ 25\over57$$false
- 3$$ 35\over256$$false
- 4$$ 1\over221$$true
- 5None of thesefalse
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Answer : 4. "$$ 1\over221$$"
Q: A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
1179 05e8476a0108c8a572abc1e51
5e8476a0108c8a572abc1e51- 1$$ 10\over21$$true
- 2$$ 11\over21$$false
- 3$$ 2\over7$$false
- 4$$ 5\over7$$false
- 5None of thesefalse
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Answer : 1. "$$ 10\over21$$"
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