Source: e-GMAT
In 2002, the number of students, who participated in a quiz was 15% more than the number of students, who participated in 2003. And the number of students, who participated in 2004 was 1200, which is 20% less than the number of students, who participated in the year 2003. How many students had participated in the year 2002?
A. 850
B. 1150
C. 1275
D. 1500
E. 1725
The OA is E
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In 2002, the number of students, who participated in a quiz
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BTGmoderatorLU
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We can let n = the number of students who participated in the quiz in 2003 and create the equation:BTGmoderatorLU wrote:Source: e-GMAT
In 2002, the number of students, who participated in a quiz was 15% more than the number of students, who participated in 2003. And the number of students, who participated in 2004 was 1200, which is 20% less than the number of students, who participated in the year 2003. How many students had participated in the year 2002?
A. 850
B. 1150
C. 1275
D. 1500
E. 1725
The OA is E
0.8n = 1200
n = 1200/0.8 = 12,000/8 = 1500
Since the number of students who participated in the quiz in 2002 was 15% more than those in 2003, the number of students who participated in the quiz in 2002 is 1.15 x 1500 = 1725.
Answer: E
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