Question 492936
Let x=rate per hour that Cindy's clock loses time, so:
5*x=4/10
x=4/50=2/25 minute per hour
In 14 hours, then, Cindy's clock will lose (2/25)*14=28/25= 1.12 min

We could also solve this problem by setting up a ratio

5 is to 0.4 as 14 is to ?

Hope this helps---ptaylor