Question

Natalia decided to build a garage and began by calculating the number of bricks required. The garage was to be 6 m by 4 m and 2.5 m in height. Each brick measures 22 cm by 10 cm by 7 cm. Natalia estimated that she would need about 40 000 bricks. Is this a reasonable estimate?​

Answer 1

Answer: Yes

Step-by-step explanation:

So, first of all, convert all the given quantities in the same unit.

6m = 600cm

4m = 400cm

2.5m = 250cm

Now, volume of the garage = 600 x 400 x 250

= 60,000,000cm³

And, volume of a brick = 7 x 22 x 10

= 1,540cm³

Number of bricks needed = 60,000,000 ÷ 1,540

≈ 39,000

So yes, Natalia's estimate is correct.