Question

out of 500 children in a school 30% are girls . if 50 boys leave the school and no new students admitted . what is the new Percentage of boys in the school​

Answer 1

percentage of boy = 70%

I.e 500×70/100=350

now. A/Q 50 boy left the school, then total no of student =450

and no. of boy =300

therefore, new percentage of boy=

(300/450) × 100

Answer 2

Answer:

66.67%

Step-by-step explanation:

Total number of children: 500

Girls: 30% = 500*0.3=150

Boys: 500-150=350

New total when boys leave:  500-50=450

Number of boys: 350-50=300

New percentage of boys: 300/450=66.67%