Summer Clouds moderators
01/07/2017 at 10:22-
Trần Nhật Dương 02/07/2017 at 17:21The sum of 5 numbers will be:
18 x 5=90
The sum of 5 numbers increases more than the old amount by:
1+2+3+4+5=15
Total of 5 numbers increased;
90+15=105
Average of 5 numbers increased:
105:5=21
=>The correct answer is 21.
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giabao246 01/07/2017 at 20:19
The sum of 5 numbers will be:
18 x 5=90
The sum of 5 numbers increases more than the old amount by:
1+2+3+4+5=15
Total of 5 numbers increased;
90+15=105
Average of 5 numbers increased:
105:5=21
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The sum of 5 number is : 18 x 5 = 90
The sum of 5 increased numbers is more than the old sum by :
1 + 2 + 3 + 4 + 5 = 15
The sum of 5 increased numbers is : 90 + 15 = 105
The average of 5 increased numbers is : 105 : 5 = 21