Question #fb6b5

1 Answer
sjc
Nov 17, 2017

#100:3#

Explanation:

we need to change them to the same units

#25min=25xx60sec=1500sec#
the ratio

#25min:45sec::1500:45#

divide by #3#

#cancel(1500)^500:cancel(45)^15::500:15#

divide by #5#

#cancel(500)^100:cancel(15)^3::100:3#

this can not be simplified further

Related questions
Impact of this question
278 views around the world
You can reuse this answer
Creative Commons License