Vandana takes $$24$$ minutes to reach her school if she goes at a speed of $$5 km/h$$. If she wants to reach school in $$20$$ minutes, what should be her speed?
With a speed of $$5 km/h$$ Vandana takes $$24$$ minutes to reach her school.
$$\therefore$$ To reach the school in $$20$$ minutes, she will go with a speed of = $$\dfrac{24 \times 5}{20}$$
$$= 6 km/h$$