- Chapter 13 Surface areas and volumes class 10 Ex. 3.4question 4
A cylindrical pipe of diameter of 4 cm and water flows through it at the rate of 20 m per min .How long would it take to fill a conical tank of radius 40 cm and depth 72 cm
My doubt is from class 10th NCERT mathematics book. Its certainly question 9 from exercise 13.1.
Scooping out hemispheres from solid cylinder will result into subtraction of C.S.A of hemispheres from total surface area of solid cylinder.
Please reply asap