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

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4 : 3

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7 : 4

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7 : 3

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Solution

The correct option is A $3 : 4$
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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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

The correct option is A 3:4The number of students =35No. of girls =20No. of boys =35−20=15Ratio in boys and girls =15:20=3:4

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

The correct option is A $3 : 4$
The number of students $= 35$
No. of girls $= 20$
No. of boys $= 35 - 20 = 15$
Ratio in boys and girls $= 15 : 20 = 3 : 4$