Question
A shop has a total of 30 bottles, consisting of x red
bottles and some blue and green bottles. The ratio of blue to green bottles is 3:2, and the average number of blue and green bottles combined is x. If two bottles are randomly selected from the stock, what is the probability that at least one of them is a green bottle?Solution
The total number of bottles in a shop=30 The number of green bottles in a shop=2a The number of blue bottles in a shop=3a (2a+3a)=2x 2x+x=30 x=10 The number of red bottles in a shop=10 The number of green and blue bottles in a shop=30-10=20 The number of blue bottles in a shop=20*3/5=12 The number of green bottles in a shop=20-12=8 Required probability= (8C1*22C1+8C2)/30C2 = (176+28)/ (15*29) =68/145
In which year did Cripps Mission arrive in India?Â
Which of the following has Largest Capacity Factor Ratio –
Kautilya in Arthashastra has mentioned _______ sources of law.
Match the following planets with their features:
What is the metric unit of pressure that is equal to 0.986923 atm?
Which of the following statements is correct regarding badminton?Â
I. At the beginning of the game of badminton and when the score is even, the ...
With which of the following sports is Nikhat Zareen related to ?
Arrange the following events associated with Pandit Madan Mohan Malaviya in chronological order, starting with the earliest :
1. Founding of t...
Which of the following age groups is considered as working population or working age in India?
The Indian Council of Medical Research has launched the 'Malaria Elimination Research Alliance (MERA) India' in order to prioritise, plan and scale up r...
Relevant for Exams:
