Question

a room is 10 m*8 m wide if one packing case requires 20cm*
40cm of spacefind the number of cases that can be exactly fitted on the floor ​

Answer 1

Answer:

10

Step-by-step explanation:

Area of the floor

=10×8 m²

=80 m²

Space for one packing case in m

=$\frac{20×40}{100}$ m²

=$\frac{800}{100}$ m²

=8 m²

Number of cases that can be exactly fitted on the floor ​

=80÷8

=10

Answer 2

Area of room = length × breadth

Given:-

• Length of room = 10 m
• Breadth of room = 8 m

Area of room = 10 × 8

→ 80 m²

Area of one packing case = 20 × 40

→ 800 cm²

To convert cm into m divide by 100. And cm² into m² divide with 10000.

→ 800/10000

→ 0.08 m²

Let number of cases that exactly fitted on the floor = x

→ x = Area of room/Area of one packing case

→ x = 800/0.08

→ x = 1000

•°• 1000 cases can be exactly fitted on the floor.