In a class of 35 students, the number of girls is 20. The ratio of number of boys to the number of girls in the class is
3:4
4:3
7:4
7:3
A
7:3
B
7:4
C
3:4
D
4:3
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Solution
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The correct option is A3:4 The number of students =35 No. of girls =20 No. of boys =35−20=15 Ratio in boys and girls =15:20=3:4
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