the answer would be D, because you do 4200÷56=75 minutes. 75 minutes= 1 hour and 15 minutes
The secretary will take 1 hour and 15 minutes to type a 4200-word report at a typing speed of 56 words per minute. The calculation shows that 4200 divided by 56 equals 75 minutes, which is 1 hour and 15 minutes. Therefore, the chosen option is D.
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