If it takes 24 boys to clear a plot of land in 20 minute how many minute will it takes 10 boys

This is a fairly easy question. You just need to set up a proportion. .
Y=34. The answer would be 34

He developed the concept of linear perspective, and he had the ability to solve architectural problems using mathematics.

For example you could start a retail clothing store because you would need to have skills in business and you could start an photography business you would need to have skills in photography. hope this