Question
A box contains 4 red, 5 blue and 3 green balls. Two
balls are drawn at random without replacement. What is the probability that both balls are of the same colour?Solution
ATQ, Total balls = 4 + 5 + 3 = 12. Total ways to choose 2 balls = C(12,2) = 66. Ways to choose 2 of same colour: Red: C(4,2) = 6 Blue: C(5,2) = 10 Green: C(3,2) = 3 Total favorable = 6 + 10 + 3 = 19. Probability = 19/66.
Arrange these soil horizons from top to bottom.
(A) A1
(B) A2
(C) A3
(D) A0
(E) A00
Choose the correct answer from the options given below:
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Which crop is heavily affected by powdery mildew?Â
Disease caused by viruses is
Contour cultivation is doneÂ
Who coined the term Chromosome in the year 1888?Â
At what temperature is retting in jute typically done?
Global Food Security Index is published by ?
On what basis are algae further categorized into different classes among the given options?
Which crop is most responsive to the application of sulfur fertilizers, particularly in terms of oil content and quality?
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