in a class the ratio of the boys to girls is 7:5. if the number of boys is 10 more than the number of girls , find the number of boys in the class. also find the total number of students.
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Let x be constant of proportion.
Therefore required equation
5x +10=7x
10=7x-5x
10=2x
X=5
Thus number of girls is 5*5=25 and number of boys is 5*7=35.
And total number is 35+25=60
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