Question

How many sack of dimension 15cm×45cm×90cm filled with rice can be kept in a room of dimension 3m×18m×9m.

Answer 1

Answer:

8000

Step-by-step explanation:

3×18×9m³=486m³

vol of 1sac =15×45×90=60750cm³

1cm³=10^-6m³

486/0.60750=8000sac

Answer 2

Number of sacks = 8000

Solution:

Dimension of sack = 15 cm × 45 cm × 90 cm

Dimension of room = 3 m × 18 m × 9 m

Let us first convert meter to centimeter.

1 m = 100 cm

3 m = 3 × 100 = 300 cm

18 m = 18 × 100 = 1800 cm

9 m = 9 × 100 = 900 cm

Now, the dimension of room = 300 cm × 1800 cm × 900 cm

$\text{Number of sacks}=\frac{\text{Dimension of room}}{\text{Dimension of sack}}$

                          $=\frac{300\times1800\times900}{15\times45\times90}$

                          = 8000

Number of sacks = 8000

Hence 8000 sacks can be filled in the room.