Question

A rectangular tank measures 20cm x 30cm x 40cm. You want to fill it by using a cubic container that is 20cm on each side to carry water from a faucet to the tank. How many trips will it take?

Answer 1

It will take 3 trips to fill the tank.

Step-by-step explanation:

To find how many trips it will take to fill the tank, we need to calculate the volume of the tank and the volume of the cubic container. The volume of the tank is given by multiplying its length, width, and height: 20cm x 30cm x 40cm = 24,000 cubic cm. The volume of the cubic container is given by multiplying its side length three times: 20cm x 20cm x 20cm = 8,000 cubic cm. To find the number of trips, we divide the volume of the tank by the volume of the cubic container: 24,000 cubic cm ÷ 8,000 cubic cm = 3 trips.

Answer 2

4 trips

Step-by-step explanation:

Given that:

Dimension of rectangular tank :

(20cm * 30cm * 40cm)

Dimension of cubic container used to fill tank = 20cm per side

Volume of tank = (20 * 30 * 40) = 24400 cm³

Volume of cubic container = (20 * 20 * 20) = 8000 cm³

Number of trips it would take :

Volume of tank / volume of container

24400 cm³ / 8000 cm³

= 3.05

Hence, it will take 4 trips