Ling can type 52 words.
52 words=1 minute
364 words is 40%
728 words is equal to 80%
182 words is 20%. Add the 80% and the 20% to equal
910 words as the full total.
Ling has already been typing for 7 minutes, because the 364 divided by 52 is 7.
So the 910 total take away the 364 she already typed = 546 words left to type. Ling has already been typing for 7 minutes, because the 364 divided by 52 is 7.
