Question

3. The yatio g number of boys to number of giuls in a class is 3:5. What percendage of the students in the class are boys?​

Answer 1

Answer:

37.5%

Step-by-step explanation:

Boys:Girls:Whole class

  3u  :  5u   :   8u

100%=8u      

1u= 100÷8

   =12.5

3u=12.5×3

   =37.5% [ boys ]

Answer 2

3:5 = 100% of the class

3x + 5x = 8x = 100%

x = 100/8 = 12.5 %

3x = 37.5 %

Hence, percentage of the boys in the class is 37.5%