Question

One-third of the girls in the test and the rest of the boys. 10% of boys and 305 of girls fail. What% of the total fails?​

Answer 1

Answer:

Step-by-step explanation:

One-third of the girls in the test and the rest of the boys. 10% of boys and 30% of girls fail. What% of the total fails?​

Let there were 3x students in test

then girls=(3x)/3=x

Thus boys=3x-x=2x

10% of boys =10*2x/100=20x/100 fails

30% of girls =30*x/100=30x/100 fails

Total students failed

=30x/100+20x/100=50x/100

=100(x/2)/3x

=50x/3x

=16.67%