54 students of class IX are taking part in sports or in music or in both activities. Out ofthem 9 students are taking parts in both activities. The ratio of the number of studentswho are taking part in sports to those who are taking part in music is 5:4
.(i) How many students are taking part in sports?
(ii) How many students are taking part in music only?
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Step-by-step explanation:
54-9=45
5a+4a=45
9a=45
a=45/9
a=5
(i)5a=5×5
25
(ii)4a=4×5
=20
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