+0  
 
0
488
2
avatar

A child’s sandbox is 1.5 m wide, 1.5 m long and 75 cm deep. If there are on average 55 grains of sand per mm3 , how many grains of sand are there in the sandbox?

Guest Aug 27, 2015

Best Answer 

 #1
avatar
+5

A child’s sandbox is 1.5 m wide, 1.5 m long and 75 cm deep. If there are on average 55 grains of sand per mm3 , how many grains of sand are there in the sandbox

Convert the sides to mm,

1.5 x1000=1500mm

75cm x10=750

1500 x1500 x 750=1,687,500,000 mm^3 (This is the volume of the box in cubic mm)

Then 1,687,500,000 x55=92,812,500,000 grains of sand in the box. Phew!!!!

Guest Aug 27, 2015
 #1
avatar
+5
Best Answer

A child’s sandbox is 1.5 m wide, 1.5 m long and 75 cm deep. If there are on average 55 grains of sand per mm3 , how many grains of sand are there in the sandbox

Convert the sides to mm,

1.5 x1000=1500mm

75cm x10=750

1500 x1500 x 750=1,687,500,000 mm^3 (This is the volume of the box in cubic mm)

Then 1,687,500,000 x55=92,812,500,000 grains of sand in the box. Phew!!!!

Guest Aug 27, 2015
 #2
avatar+93342 
0

Thanks anon - that is a lot of sand grains :))

Melody  Aug 27, 2015

15 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.