CBSE Class 10 Maths (Basic) 2022 · Paper 430/3/1 · Question 14

The technique of Rainwater harvesting through Recharge pit is very useful. Rainwater is collected on the roof and then flowing through the Recharge pit it goes to the ground. Observe the picture given above. The surface area of the roof floor is $100$ m${}^2$. The cuboidal pit measures $3$ m $\times 3$ m $\times 2$ m. (Breadth $=3$ m, Depth $=2$ m, Length $=3$ m.)