There are 350 students in a class. The ratio of the number of boys to the number of girls is 4 : 3. Find the number of boys in the class.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 200
In the ratio 4 : 3 the class is made of \(4+3=7\) equal parts, and the boys are 4 of these 7 parts.
One part \(\displaystyle =\frac{350}{7}=50\)
Number of boys \(=4\times50=200\)
There are 200 boys in the class.