The students of science commerce and arts are in a ratio 2 : 3 : 2. If the pass percentage of commerce is 40% and the total students passing in commerce are 12, find the total students combined of all three sections.

The students of science commerce and arts are in a ratio 2 : 3 : 2. If the pass percentage of commerce is 40% and the total students passing in commerce are 12, find the total students combined of all three sections. Correct Answer 70

The total students of commerce : Passing students of commerce = 40% = 12 students 100% of the students of commerce section = 12 / 40 * 100 = 12 * 2.5 = 30 The ratio of students in science to commerce to arts = 2 : 3 : 2 Here 3 parts of the total = 30 Total parts = 2 + 3 + 2 = 7 3 parts = 30 7 parts = 30 / 3 * 7 = 70 The total number of students = 70

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