Question

1. A cylindrical water tank of radius 2m and height 3m is shown below. 2m 3m 3 The tank is initially empty. If it is filled at the rate of 1.2 m³ per minute, how long will it take to fill the tank?​

Answer 1

Answer: 31.4 mins (2dp).

Step-by-step explanation: To find the volume of the tank.

πr² × h

π2² × 3

= 37.7m³

To find how long it will take to fill the tank:

37.7 ÷ 1.2 = 31.4 minutes (2dp)