nope those tires, wont fit, what your looking at is 20" height,11" wide, and an 10" rim. Blaster have 8" rims, in the rear so you can run anything like (22" 10" 8")(21"11"8") (20"11"8".) the thing is you need an 8" rim for the rear and thats it! Are you looking for front tires too?
to find your tire size read the sidewall. it will say something like 20/11/8. then all you have to do is go online and match them up. the most important numbers are the first and last. the first is tire size, and the last number is the wheel size. the middle number is the whidth of the tire. any tire store that sells atv tires will know what fits as well.
stock rear blaster is 21/10/8
common size to buy would be a 20/11/8, to get some extra width.
i got bigger rims in the rear so i am running 20/11/10