A student scored marks in the ratio 5:4:6:8:7 in five subjects having equal maximum marks. he scored 50% of the maximum marks in all the five subjects taken together. in how many subjects did he score more than 55% of the maximum marks?
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Let The maximum mark = 100
so total maximum marks for 5 subjects= 500
Total marks he scored = 500 x 50/100 =250
Marks scored by him for each subjects = 5x, 4x, 6x, 8x, 7x
5x + 4x + 6x + 8x + 7x = 250
30x = 250
x = 8.33
mark for subject 1 = 5x = 41.65
Mark for subject 2 = 4x = 33.32
Mark for subject 3 = 6x = 49.98
Mark for subject 4 = 8x = 66.64
Mark for subject 5 = 7x = 58.31
He got more than 55% for 2 subjects
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