DIRECTIONS for the question: Solve the following question and mark the best possible option.
A person can complete a journey in 6 hours. He travels first half time of the journey at the rate of 15 kmph and second half at the rate of 12 kmph. Find the total distance travelled by the person.
A)
78 km
B)
81 km
C)
85 km
D)
None of these
B
Total distance travelled = 15 × 3 + 12 × 3 = 45 + 36 = 81 km