Question
Which of the following is not a greenhouse
gas?Solution
Although nitrogen makes up about 78% of the Earth's atmosphere, it is not a greenhouse gas because it does not absorb or emit infrared radiation.
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A game consists of tossing three coins once and then rolling two dice. Find the probability of getting exactly two heads in the coin toss and a sum equa...
A coin is tossed four times one by one. What is the probability of getting a tail for the first time, head for the second time and again head for the th...
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A box contains 6 red, 5 green, and 4 blue balls. Two balls are drawn randomly. What is the probability that they are of different colors?
A bag contains ‘x’ red balls and 2 green balls. If the probability of getting a red ball is 7/9, then find the probability of getting different colo...
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 1.3 times that of drawing a white ball, ...
- There are black and white marbles in a jar in the ratio 4:5. After 20 marbles of each type are added, the ratio becomes 6:7. Find the original number of wh...
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