Given:
<u>In July:</u>
Number of days he has done the homework = 6
Number of days he has not done the homework = 4
<u>In August:</u>
Number of days he has done the homework = 16
Number of days he has not done the homework = 7
<u>In September:</u>
Number of days he has done the homework = 14
Number of days he has not done the homework = 4
<u>In October:</u>
Number of days he has done the homework = 14
Number of days he has not done the homework = 8
<u>In November:</u>
Number of days he has done the homework = 16
Number of days he has not done the homework = 4
<u>In December:</u>
Number of days he has done the homework = 5
Number of days he has not done the homework = 10
To find the months in which the difference between the number of days with homework and with no homework greater than 6.
Now,
<u>In July,</u>
The difference between the number of days with homework and with no homework = 6-4 = 2
<u>In August,</u>
The difference between the number of days with homework and with no homework = 16-7 = 9
<u>In September,</u>
The difference between the number of days with homework and with no homework = 14-4 = 10
<u>In October,</u>
The difference between the number of days with homework and with no homework = 14-8 = 6
<u>In November,</u>
The difference between the number of days with homework and with no homework = 16-4 = 12
<u>In December,</u>
The difference between the number of days with homework and with no homework = 10-5 = 5
Hence,
In 3 months the difference between the number of days with homework and with no homework greater than 6 and these are: August, September, November.
