A. 25/42
B. 9/20
C. 10/23
D. 41/42
Explanation:
Total fruits = 9
Since there must be at least two apples,
(⁵C₂ * ⁴C₁)/⁹C₃ + ⁵C₃/⁹C₃ = 25/42.
Related Mcqs:
- Ramees bought 4 dozen apples at Rs. 12 per dozen and 2 dozen apples at Rs. 16 per dozen. He sold all of them to earn 20%. At what price per dozen did he sell the apples?
A. Rs. 14.40
B. Rs. 16.00
C. Rs. 16.80
D. Rs. 19.20 - A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?
A. 1/455
B. 2/455
C. 1/91
D. 4/455 - A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If four marbles are picked at random, what is the probability that none is blue?
A. 17/91
B. 33/91
C. 51/91
D. 65/91 - A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?
A. 3/22
B. 4/21
C. 2/21
D. 1/14 - A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?
A. 4/9
B. 5/9
C. 7/9
D. 8/9 - The cost of 10 kg of apples is equal to the cost of 24 kg of rice. The cost of 6 kg of flour equals the cost of 2 kg of rice. The cost of each kg of flour is Rs.20.50. Find the total cost of 4 kg of apples, 3 kg of rice and 5 kg of flour?
A. Rs.849.40
B. Rs.877.40
C. Rs.901.60
D. Rs.815.20
E. None of these - The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on at least one ticket is__________?
A. 0.4869
B. 0.5904
C. 0.6234
D. 0.5834 - A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good.
A. 6/63
B. 2/63
C. 125/126
D. 1/126 - In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?
A. 5/21
B. 5/14
C. 9/14
D. 16/21 - The probability that a number selected at random from the first 50 natural numbers is a composite number is__________?
A. 21/25
B. 17/25
C. 4/25
D. 8/25
