A can complete a journey in 10 hours. He travels first of the journey at the rate of 21 me/ hr and second half at the rate of 24 km/hr. find the total journey in km.
A 220 km
B 224 km
C 230 km
D 234 km
Solution
Correct Answer: Option B
in first five hours he journeyed=21x5=105 km in second five hours he journeyed=24X5=120 km total=(105+120)=225 km
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