how much yard work to burn 100 calories ?

felecia187how many minutes to burn 100 calories when doing this type of yard work ? 
mowing lawn 20 minutes .
painting house 18 minutes .
raking leaves 23 minutes .
snow shoveling 15 minutes .
washing car 20 minutes .
pulling weeds 20 minutes .
now you know that your hard work helps you stay fit , enjoy .