Melvin has AED 22 less than 4 times the money Zain has. If Melvin has AED18 ,find how much money does Zain have
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The ratio of number of girls to the number of boys= 20/15 = 4/3 = 4 : 3
(b)To find out the ratio of number of girls to the total number of students in the class we have to first find the total numbers of students in the class i.e. 20+15 = 35
∴ The ratio of number of girls the total number of students in the class= 20/35 = 4/7 = 4 : 7
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