Advertisements
Advertisements
प्रश्न
Cards, each marked with one of the numbers 6, 7, 8,..., 15, are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting a card with a number less than 10?
विकल्प
`3/5`
`1/3`
`1/2`
`2/5`
उत्तर
`2/5`
Explanation:
All possible outcomes are 6, 7, 8................15.
Number of all possible outcomes = 10
Out of these, the numbers that are less than 10 are 6, 7, 8 and 9.
Number of favourable outcomes = 4
∴ P(getting a number that is less than 10) = `4/10 - 2/5`
APPEARS IN
संबंधित प्रश्न
A card is drawn at random from a pack of well shuffled 52 playing cards. Find the probability that the card drawn is a spade.
Two coins are tossed simultaneously. Find the probability of getting at most 1 headat most 1 head.
Two dice are rolled together. Find the probability of getting such numbers on two dice whose product is a perfect square.
Suppose the bulb drawn in (i) is not defective and not replaced. Now, bulb is drawn at random from the rest. What is the probability that this bulb is not defective?
A bag contains lemon-flavoured candies only. Hema takes out one candy without looking into the bag. What is the probability that she takes out a lemon-flavoured candy?
A card is drawn at random from a well-shuffled deck of 52 cards. Find the probability of getting a diamond.
Two coins are tossed simultaneously. What is the probability of getting at most one head?
In a lottery, there are 6 prizes and 24 blanks. What is the probability of not getting a prize?
A carton of 24 bulbs contain 6 defective bulbs. One bulbs is drawn at random. What is the probability that the bulb is not defective? If the bulb selected is defective and it is not replaced and a second bulb is selected at random from the rest, what is the probability that the second bulb is defective?
A child’s game has 8 triangles of which 3 are blue and rest are red and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a square
