Answer :
You could set up a proportion to figure out the anwer. 15 hurdles/60%=X hurdles/100%. Cross multiply, 1500=60x. Divide by 60, 25=X=total amount of hurdles. Hope this helps!
40/100*15
cancel 100 and 15
40/20*3
120/20
6 hurdles is 40%
6+15=21 hurdles
there are 21 hurdles.
cancel 100 and 15
40/20*3
120/20
6 hurdles is 40%
6+15=21 hurdles
there are 21 hurdles.
