Q.8.A bag contains 90 marbles, some green and some white. The ratio of green
marbles to white ones is 1 : 8. How many green marbles are there?
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Step-by-step explanation: total marble: 60 ; blue to green : 1:5 ; total ratio : (1+5) 6
so, blue marble : 60* 1/6 =10 green marble : 60*5/6=50
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