c is a point midway between A and B . the average speed of a person from A to C is V .at what speed must be travel the remaining distance to have an average speed of 4V/3 for the whole journey ?
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Answer:
5/3
speed from A to C =V
let's take speed from c to B =X
- V+X /2 =4V/3
- V+x =8V/3
- X= 8V - 3V / 3
- X=5V/3
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