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A bag contains 20 balls Calculation: ⇒ We have to at least one ball of each colour ⇒ Even if we pick 8 balls there is a probability all of them may be green. Hence we must pick more than 8 balls for sure ⇒ Now even we pick (8 + 7) balls or 15 balls, there is a probability that all of them may be green and white only with no red ball picked at all. ⇒ Hence taking the worst possible scenario in consideration we must pick = 15 + 1 = 16 ∴ The required result will be 16.
Which of the following is a highly salt tolerant crop?
AICRP on Dryland agriculture was launched in
What should be the pH for the Fish pond for fish culture?
Presently which of the following chemical fertilizers is not produced in India and is being imported?
Seed multiplication ratio of wheat is
Which of the following is an example of a systemic herbicide?
For cultivating land of around 40 hac for monocropping what HP tractor is preferred?
Law of diminishing return was proposed by :
What is the average gestation period of buffalo
The bacterial disease, citrus greening is spread by _____ vector.