8,000
The answer is 60 although it could also be 8000
Yes, 20 15 vision is better than 20 20 vision.
Yes, 20 16 is better it means you have better than perfect vision
this is clearly a trick question. 20 plus 20 plus 20 is equal to 60 and there is 60 minites in 1 whole hour so 20 plus 20 plus 20 is equal to 1.