In an arrangement of trees, every fifth tree is a mango tree and every eighth tree is an apple tree. Find the next step of the pattern for both mango and apple trees.
A
Mango tree: 22
Apple tree: 32
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B
Mango tree: 20
Apple tree: 28
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C
Mango tree: 20
Apple tree: 30
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D
Mango tree: 20
Apple tree: 32
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Solution
The correct option is B Mango tree: 20
Apple tree: 28 It is given that every fifth tree in the pattern is a mango tree and every eighth tree in the pattern is an apple tree.
Let us consider the number of mango trees on a number line.
Mango tress follows a pattern of "+5".
So, the next number for mango tree will be at 15 + 5 = 20.
Now, considering the number of apple trees on the number line, we get the following:
Apple trees follows a pattern of "+7".
So, the next number for an apple tree will be at 21 + 7 = 28.