Kyle got 75% in setA and got 35% in setB . he thinks the his overall score should be 55% but the teacher gives him 50%. why is the teacher right?
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Let the total marks of both the set be 100.
Marks obtained in Set A = 75% of 100 = 75
Marks obtained in Set B = 35% of 100 = 35
Total marks of both set = 200
Total marks obtained = 75 + 35 = 110
Percentage of marks = 110×100/200 = 55%
.'. Teacher is wrong
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