Angelica starts on a walk at 5 kilometres an hour. Three hours later, on the same route, Janelle starts riding her bicycle at 11 kilometres an hour. When will Janelle overtake Angelica?

1 Answer
P dilip_k
Jul 12, 2018

Angelica starts on a walk at 5 kilometres an hour. In 3hrs she walks #15km#. =

on the same route, Janelle starts riding her bicycle at 11 kilometres an hour. If Janelle overtakes Angelica after #t# hr,then

#11xxt-5xxt=15#

#=>6t=15#

#=>t=15/6=2.5# hr

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