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The number of boys and girls in a class are in the ratio 7: 5. The number of boys is 8 more than the number of girls. What is the total class strength? * a) 47b) 48c) 50d) 42​

Answer»

-STEP explanation:LET no. of BOYS=7x& no. of girls=5xGiven - no. of boys is 8 more than the no. of girls.=>7x=5x+8=>7x-5x=8=>2x=8=>x=4=>no. of boys=7x=7×4=28=>no.of girls=5x=5×4=20Total CLASS strength=no. of boys + no. of girls = 28+20= b) 48 ans.



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