Question

9. A word processing operator typed 44 words
per minute. After practice, the operator's speed
increased to 55 words per minutes. By what
percent did the operator's speed increase?
A25% B. 50%
C. 15% D. 20%​

Answer 1

Answer:

c

Step-by-step explanation:

c 44 -55 = 10 is nearest to 15

Answer 2

25%

Step-by-step explanation:

55-44=11

now divide 11 by the number of words per min, he started with.

11/44 and multiply it with 100 to get the percentage so

11/44×100 = 25%

you can do the calculation and see for yourself