Question

cockroach run at a speed of 0.5 km per hour then find the time required by its cover a distance of 10 m​

Answer 1

Answer:

$\frac{0.5km}{hr} \: = \frac{0.5 \times 1000m}{60 \times 60secs} = \frac{5m}{36sec} \: \:$

time = distance/speed

time =

$10 \div \frac{5}{36} = 10 \times \frac{36}{5} = 72secs \\ = 1min \: 12secs$

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