Kanishka cycles to her school at an average speed of 20 km/hr. It takes her 15 minutes to reach the
school. If she wants to reach her school in 12 minutes, what should be her average speed?
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Step-by-step explanation:
15minites=20km/hr
12minutes=15×20/12
=3×5×4×5/3×4
=25km/hr
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