Correct option is D
Given:
Ratio of girls to boys = 2 : 5
Number of girls = 200
Formula Used:
Value of one ratio part =
Number of boys = Value of one ratio part × Boys Ratio Part
Solution:
The ratio of girls is given as 2 parts.
2 parts = 200
1 part = = 100
The ratio of boys is 5 parts.
Number of boys = 5 × 100 = 500
Final Answer
So the correct answer is (d)