There were m visitors in an exhibition on the first day and 1,200 fewer vistors on the second day. On the third day, the number
of vistors was 30% greator than the number of vistors on the second day. What was the average number of vistors over the three days?
1 answer:
Answer:
Step-by-step explanation:
The average number is given by :
[m + (m - 1200) + (m - 1200)(1.30 ] / 3 =
[ 2m + 1.30m - 1200 - 1560] / 3 =
[3.3m - 2760] / 3 =
[1.1 m - 920 ]
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