2009
Mathematics
67ca00ce0c643c71d77dee1f
The distribution above shows the number of days a group of 260 students were absent from school in a particular term. How many students were absent for at least four days in the term?
A.
180
B.
120
C.
110
D.
40
Correct Answer: 120
Explanation
20 + 2x + 60 + 40 + x + 50 = 260 170 + 3x = 260 3x = 260 - 170 3x = 90 x = 90/3 = 30 At least 4 days 4 days = 40 5 days = 30 6 days = 50 Total = 120
20 + 2x + 60 + 40 + x + 50 = 260 170 + 3x = 260 3x = 260 - 170 3x = 90 x = 90/3 = 30 At least 4 days 4 days = 40 5 days = 30 6 days = 50 Total = 120THIS WEEK's
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