CASELETS DI-3

Friday 24 August 2018

In a school total 500 students study there? Out of that, 26.8 % have taken maths, 26% have taken physics and 22% have taken chemistry. 6% of total students have taken both Physics and Chemistry but not in maths and 60% of this numbers have taken maths and Chemistry but not physics. 4.4 % students have taken all three subjects and 8.4% students have taken maths and physics but not chemistry.

1. How many students have taken physics only?

2. How many students have taken only one subject?

3. What percentage of students have taken chemistry only?

4. The number of students who took all three subjects is what percentage of the number of students who have taken maths only?

5. The number of students who took at least two subjects is approximately what percentage of the number of students who took at most two subjects?

 

 

 

 

Answer:-1. 36    2. 128   3. 8%   4. 42.3%    5. 56%

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