The following pie chart shows the marks secured by Ravi in different subjects. If he scored 80 खत पाई चाट marks in Mathematics, then the marks scored in chemistry is:
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From the figure
Mathematics : Physics : Computer Science : Chemistry
= 28/100 : 28/100 : 21/100 : 23/100
= 28 : 28 : 21 : 23
Let the number in MATHEMATICS = 28x
Then
28x = 80
x = 80/28
So the marks In Chemistry
= 21x
= 21 × 80/28
= 60
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