Respuesta :

first you would find out how many words he types in 1 minute. Your answer for that is 51 words per minute. Now multiply that by 10 and that your answer. Your answer is 510 words in 10 minutes. 
Vimal1
So in 3 minutes = 153 words
then in 1 minute 153/3 = 51 words per minute

Then for 10 minutes = 51 × 10 = 510

Ben can type 510 words in 10 minutes