3 years ago

Rock can read 10 books in 30 minutes.how long does it take rock to read 15 books,if the speed is consistant.

2 answers:

7 0

10book=30mins
divide 10
1book=3mins

time=(time to read 1 book) times (number of books)
time to read 1 book=3 mins
15 books
15 books=15 times 3mins
15books=45mins

45 mins

cricket20 [7]3 years ago

3 0

45 since 30/10=3 so he reads one book in 3 minutes, Therefore, 15 x 3=45

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