Total number of hats = 6 + 4 + 2 + 4 = 16 Let S be the sample space. Then, n(S) = number of ways of drawing 4 hats out of 16 = ¹⁶C_4 = (16 × 15× 14 × 13 )/( 4 × 3 × 2 × 1) = 1820 Let E= event of drawing 4 hats so that one is green, two are blue and one is red = n(E) = ²C_1×⁴C_2×⁶C_1= 2 × 6 × 6= 72 ∴ P (E) = (n(E))/(n(S))= 72/1820 = 18/455
Which of the following gases is/are associated with acid rain?
1. Sulphur Dioxide and Nitrogen Oxides
2. Carbon Monoxide
3. Met...
The process in which the branches of the tea bushes are cut off is
Which one of the following committee was constituted to review environmental laws in the country?
The Tadoba-Andhari Tiger reserve is located in ____?
Which one amongst the following is not a Green House gas?
Cyclones Gulab was a tropical cyclone that caused considerable damage to ______ Asia.
The Environment (Protection) Act of India was enacted in the year –
Which among the following ecosystems are likely to face the impact of global warming more than the others?
In a food chain, what is the difference between primary consumers and secondary consumers?
Which one of the following is an element of weather?
