The average mathematics marks of two section A and B of class IX in the annual examination is 74. The average marks of Section A is 77.5 and that of Section B is 70. The ratio of number of student of section A and B is:
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Q:
The average mathematics marks of two section A and B of class IX in the annual examination is 74. The average marks of Section A is 77.5 and that of Section B is 70. The ratio of number of student of section A and B is:
- 17 : 8false
- 28 : 5false
- 38 : 7true
- 47 : 5false
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