There are 800 students in a school, out of which 560 are girls. The percentage of boys students in the school is ______
20%
35%
30%
25%
In a school picnic, out of 250 students, 150 are boys. Find the percentage of girls.
Mark (✓) against the correct answer 70% of students in a school are boys. If the number of girls is 240, how many boys are there in the school? (a) 420 (b) 560 (c) 630 (d) 480