Arithmetic Aptitude :: Probability
- One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is either a red card or a king ?
- What if the probability of getting a king or a queen in a single drawn from a pack of 52 cards ?
- A card is drawn from a pack of 52 cards. A card is drawn at random. What is the probability that it is neither a heart nor a king ?
- Seven white balls and three black balls are randomly placed in a row, The probability that no two black balls are placed adjacently equals ?
- The probability that a man lives after 10 years is 1/4 and that his wife is alive after 10 years is 1/3. The probability that neither of them is alive after 10 years is ?
- The number of tosses that have to be made in order that there is 99% probability of getting at least one head is ?
- If an integer is selected at random from 1 to 100. The probability that it relatively prime to 100 is ?
- n books are to be arranged on a self. These include m volumes of a science book (m < n). The probability that in any arrangement, the volumes of science books are in ascending order is ?
- Seven white balls and three black ball are randomly placed in a row. The probability that no two black balls are placed adjacently equals ?
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