Answers

2014-06-29T15:04:12+05:30
Total number of students in the class = 35
number of students wearing glasses = 17
Therefore, number of students not wearing glasses = 35-17 = 18
There for the ratio is 18:17

that should help
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2014-06-30T10:25:22+05:30
Pupils with glasses=17
pupils without glasses=35-17=18
therefore ratio must be 18:17
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