Jill left Bill’s house and traveled toward the lake. Two hours later Kayla left Bill’s house traveling 14 km/h faster in an effort to catch up to…

Jill left Bill’s house and traveled toward

the lake. Two hours later Kayla left Bill’s

house traveling 14 km/h faster in an effort to

catch up to her. After three hours Kayla

finally caught up. What was Jill’s average

speed?