Answer:
14 stacks
Explanation:
Given :
There are 70 red colored blocks
There are 84 green colored blocks
The ratio of green blocks to red blocks is

Therefore, the ratio of g : b = 1.2 : 1
or g : b = 6 : 5
Therefore, in order to calculate the number of stacks , we divide 84 by 6 and we get 14.
So we will get 14 block stacks to be made of 6 green blocks and 5 red blocks.