Question

due to heavy flood in a state thousands were rendered homeless , 50 schools collectively offered to state government to provide place and the canvas for 1500 tents to be fixed . the lower part of each tent is cylindrical of radius 2.8 m and height 3.5 m with conical upper part of same radius and height 2.1 m .if the canvas used to make tents cost rs 120 per sq km , find the amount shared by each school to set up the tents?

Answer 1

Formulas Used :

1.Surface Area of Cylinder = 2 πrh 
2.Curved Surface area of Conical Upper Part  = π r l

Solution ⇒

1.Total Area of Each Tent (Cylinder) = 2 πrh
                                                             = 2 * 22/7 * 2.8* 3.5
                                                             = 2 * 22 * 0.4 * 3.5
                                                             = 17.6 * 3.5
                                                             = 61.6 m²

Area of Conical Upper Part (Cone) = π r l
                                                           = 22/7 * 2.8 * 2.1
                                                           = 22 * 0.4 * 2.1
                                                           = 8.8 * 2.1
                                                           = 18.48 m²

Area of 1500 tents = Area of Cylinder + Area of Cone
                                = 61.6 + 18.48
                                = 80.08 m²

Cost For Making Tent = Rs 120 per m²
Total Money Cost For Canvas = 120 * 80.08
                                                 = Rs 9609.60

Amount Shared By Each School = Total Amount / no . of School
                                                        = 9609.6 / 50
                                                        = Rs 192.19
                                                        = Rs 192.20 

Sincerly Hope The Answer Is Correct Well i Tried My Best
If Wrong Plz Forgive Me

If Its Correct Then ⇒

Hope Its Correct
Mark This Answer Brainliest If This Helped You
Thankx