Question

anita can finish typing a 200 page document in 18 hours, savita in 12hours and kavita in 12 hours. how long will they take to type a 200 page document, if they work together.

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Answer 1

Answer:

14 hours

Step-by-step explanation:

all are finishing the task in 18+12+12=42 hours

all are doing the task of 200+200+200=600 pages

so,

600 pages =42 hours

1 pages=(42÷600) hours

200 pages=(42÷600)×200 hours

or,(42×200)÷600

=8400÷600

=14 hours