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25 Oct 2017, 19:52
Kudos
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
89% (00:56) correct
11%
(00:49)
wrong
based on 133
sessions
History
Date
Time
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Not Attempted Yet
75% of the fruit trees in an orchard are apple trees, and 20% of those trees produce yellow apple. If one tree is to be selected at random, what is the probability that the tree selected produces yellow apple?
(a) 0.15
(b) 0.20
(c) 0.25
(d) 0.50
(e) 0.55
(a) 0.15
(b) 0.20
(c) 0.25
(d) 0.50
(e) 0.55
25 Oct 2017, 20:26
Kudos
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saswata4s
Hi....
75% produce apples, out of which 20% or 75*20/100 % or 15% produce yellow apples.
So PROBABILITY of choosing one of those = 15/100=0.15
A
25 Oct 2017, 22:39
Kudos
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20% of 75% = 1/5 * 3/4 = 3/20 of total
This means out of every 20 trees, 3 will give yellow apple. Hence the probability is 3/20 or 0.15
Hence A answer
This means out of every 20 trees, 3 will give yellow apple. Hence the probability is 3/20 or 0.15
Hence A answer
