Question

An earthworm of length 15cm is crawling along at 2cm/5 an ant overtakes the worm in 5 seconds how fast is the ant walking?

Answer 1

$\mathbb{Answer}$

Total distance Ant cover = length of earthworm = 15cm

time = 5sec

so, speed = 15/5 = 3cm/sec

now this is the usual speed of both ,

since earthworm speed is = 2cm/sec

ant speed will be = 3+2 = 5cm/sec (Ans.)

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