A school collected ₹2100 for charity. It was decided to divide the money between an orphanage and a blind school in the ratio 3 : 4. How much money did each receive?

Amount collected for charity = ₹2100.

The ratio between orphanage and a blind school = 3 : 4.

Sum of ratio = 3 + 4 = 7

Orphanage share = $\dfrac{3}{7} \times ₹2100 = ₹900.$

Blind school share = $\dfrac{4}{7} \times ₹2100 = ₹1200.$

Hence, the share of orphanage school is ₹900 and the share of blind school is ₹2100.