Students of Primary, Middle, Secondary and Sr. Secondary classes collected donation for a Relief Fund as shown in the pie chart. If the donation collected from Middle classes was ₹6,750, then how much money was collected by the Primary classes?

₹4,050

Donation collected from middle class = 6750

Donation from middle class = 30% of Total donation

ATQ ,

30% of Total donation = 6750

Total donation = \(\frac{6750 }{30}\) × 100

= 22500

Donation by primary classes = \(\frac{18 }{100}\) × 22500  =  Rs. 4050