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A bag contains 5 red balls and 8 blue balls. It also contains 4 green and 7 black balls. If a ball is drawn at random,...
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Total number of balls = 5 + 8 + 4 + 7 = 24Number of ways of selecting a ball from the bag is= 24C1 = 24Number of...
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Read the passage carefully and answer the following questions Ecosystems provide people with a variety of goods and services; food, clean water, clean air, flood control, soil stabilization, pollination, climate regulation, spiritual fulfillment and aesthetic enjoyment, to name just a few. Most of these benefits either are irreplaceable or the technology necessary to replace them is prohibitively expensive. For example, potable fresh water can be provided by desalinating sea-water, but only…
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