Question

hey is there any one who solve it both questions plzz fast very urgent

Answer 1

Given diameter of cylinder = 14 cm

Therefore radius of cylinder, r = 7 cm

Volume of cylinder = πr2h cubic units

Volume of water flowing through the cylindrical pipe in 1 hour at the rate of 15km/hr = (22/7) x (7/100) x (7/100) x 15000 = 231  m^3

 We know that volume of cuboid = lbh cubic units 

Therefore volume of water in the tank = 54 x 44 x (21/100) = 462 m^3

Time taken = (462/231) = 2 hours




❤️❤️❤️❤️OR❤️❤️❤️❤️

Let number of small balls = x

Volume of x small balls = Volume of sphere

(4/3)*π(0.3)^3 * x = (4/3)*π(3)^3

x = (3)^3 / (0.3)^3

x = (10)^3 cm^3