75% of the fruit trees in an orchard are apple trees, and 20% of those

Question

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

chetan2u · Answer

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

amanvermagmat · Answer

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

frndrobinster · Answer

Let total no. of trees be 100
Apple trees = 75% =75
Yellow apple = 20% of 75 = 75/5 =15
Probability = 15/100 = 0.15

JeffTargetTestPrep · Answer

If we let the total number of trees = n, then 3/4 x 1/5 x n = 3n/20 produce yellow apples. Thus, the probability that the tree selected produces yellow apples is (3n/20)/n = 3/20 = 0.15.

Answer: A

nigina93 · Answer

Hey,
75 tress out of 100 are apple trees. Out of these trees 20% or 15 tress are yellow apple tress. Probability of picking yellow tree is 15/100, or .15

75% of the fruit trees in an orchard are apple trees, and 20% of those

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75% of the fruit trees in an orchard are apple trees, and 20% of those

Prep Toolkit

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