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GMAT Quantitative Reasoning Practice Test 1
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© examsnet.com
Question : 7
Total: 100
In a psychology school the grade of the students is determined by the following method: At the end of the first year the grade equals to twice the age of the student. From then on, the grade is determined by twice the age of the student plus half of his grade from the previous year.
If Joey's grade at the end of the first year is 40 , what will be his grade at the end of the third year?
44
56
62
75
80
Validate
Solution:
From the grade 40 at the end of the first year we learn that his age is 20 . At the end of the second year, he will be 21 and his grade will be
21
×
2
+
1
∕
2
×
40
=
62
. At the end of the third year, he will be 22 and his grade will be
22
×
2
+
1
∕
2
×
62
=
75
.
© examsnet.com
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