Correct option is C
Given: -
10% of x = 15% of y
Formula Used: To find the ratio, we set up the equation: (10/100) × x = (15/100) × y
Solution: Simplifying the equation: x10 = y15
Cross-multiply: 10x = 15y
Now divide both sides by 5: 2x = 3y
Thus, the ratio x : y = 3 : 2.