If 75% of the students in a school are boys and the number of girls is 520, the number of boys is:

Question: If 75% of the students in a school are boys and the number of girls is 520, the number of boys is:

Solution:
No. of boys = 75%
No. Girls = 25% = 520

Now
25% = 520
1% = 520/25
75% = (520 × 75)/25
= 1560