SOLUTION: A boy walks at 4 km/h. There is a woman 125 metres ahead from the boy. The boy passes the woman after 15 minutes. What was the woman's speed? Thanks
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Question 944759: A boy walks at 4 km/h. There is a woman 125 metres ahead from the boy. The boy passes the woman after 15 minutes. What was the woman's speed? Thanks
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the woman's speed in km/hr
Let hrs
---------------------
km
----------------
Convert meters to km
km
-----------------------
The woman's equation is:
Multiply both sides by
The woman's speed is 3.5 km/hr
-------------------------------
check:
At her rate, in 1/4 hr, she travels km
km which was her head start
OK
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