Direction: Based on the given information, determine the relation between the two quantities

Quantity A: Dhoni covers half his journey by a bike at 80 kmph, half of the remaining by the car at 75 kmph and the rest by cycle at 15 kmph. Find his average speed during the entire journey.

Quantity B: A boat goes 328 km downstream in 8 hours and a distance of 245 km upstream in 7 hours. The speed of the boat in still water is