Question

ben can type 153 words in 3 minutes.at his rate,how many words can he type in 10 minutes?

Answer 1

153 words/3 mins= x/10 mins 

153/3=x/10 

Cross multiply: 

3x=1530 

Divide both sides by 3. 

3x/3=1530/3 
x=510 
-Therefore, Ben can type 510 words in 10 minutes.