alivapriyada wrote:A farmer has an apple orchard consisting of Fuji and Gala apple trees. Due to high winds this year 10% of his trees cross pollinated. The number of his trees that are pure Fuji plus the cross-pollinated ones totals 187, while 3/4 of all his trees are pure Fuji. How many of his trees are pure Gala?
22
33
55
77
88
Let c = cross pollinated, f = fuji, g=gala
c+f = 10% + 3/4 = 85%
So g = 15%
So (c+f):g = 85:15 = 17:3
c+f = 187
So 187/g = 17/3
g = (3*187)/17 = 33.
The correct answer is B.
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