Question

Question 89

Shabnam takes 20 minutes to reach her school, if she goes at a speed of 6 km/h. If she wants to reach school in 24 minutes. What should be her speed?

Answer 1

Shabnam's speed $=6km/h=\frac{6\times 1000}{60}\times 20=\frac{1000}{10}\times 20=100\times 20=2000m$
If she want to reach the school in 24 min, then she should maintain the speed $=\frac{2000}{24}\frac{1000}{12}=\frac{500}{6}=\frac{500\times 60}{1000\times 6}=5km/hr$