Bob types

Bob types 260 words in 2 and 1/2 of a minute. How many words per minute?

Correct answer:

r =  104

Step-by-step explanation:

n=260 t=221=2+21=22 2+1=24+1=25=221=2.5  r=n/t=260/25=260:25=260 52=5260 2=5520=104



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