A car travelled 216km at an average speed of 48km/h.On the return journey the average speed increased to 72km/h.Calculate the av
erage speed,in km/h for the whole journey
1 answer:
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notice, it goes 4,6 then 4, 6 again, and so on and so on
based on whatever exponent it may have
now, you're being asked, what 214 will give? 4 or 6?
