The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

• ক 21 : 22 ✅ সঠিক উত্তর
• খ 7 : 8
• গ 8 : 7
• ঘ 1 : 1