SOLUTION: Rahul complete a journey in 15 hrs where he travel at a speed of 1st half of it in 90 km/hr and 2nd half of it in 27 km/hr and takes a rest for 1 hr . Find the distance he travel.
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Question 857771: Rahul complete a journey in 15 hrs where he travel at a speed of 1st half of it in 90 km/hr and 2nd half of it in 27 km/hr and takes a rest for 1 hr . Find the distance he travel.
A. 634km
B. 828 km
C . 819 km
D. 623 km Answer by JulietG(1812) (Show Source):
You can put this solution on YOUR website! Rahul's traveling time is 15 hours - 1 hour rest, or 14 hours.
Half of that time (7 hours) is traveled at 90 kmh. So his first half is 90*7, or 630 km.
His second half (7 hours) is traveled at 27kmh. 27*7=189 km.
Add them together to get:
630+189 = 819km
