Question

UNIT 4
120
go
(iv) Sara's class was sorting books in the library. The class sorted 45 books in 90 minutes. If
they continue sorting at this rate, how long will it take them to sort 120 books?​

Answer 1

Answer:

45 books in 90 minutes

therefore ,

Time taken for 1 book

= 45/90

=2 minutes

therefore ,

time taken for 120 books

=120×2= 240 minutes