Question

Seema cycles to her school at an average speed of 12 km/hr. It takes her 20

minutes to reach the school. If she wants to reach the school in 15 minutes,

what should be her average speed?​

Answer 1

Answer:

Her average speed should be  $= 16 km/hr$

Step-by-step explanation:

At an average speed of 12 km/hr

It takes her 20min = $\frac{20}{60} hours = \frac{1}{3} hours$

Distance of Seema's school $= Average Speed . time taken = 12 . \frac{1}{3} = 4 km$

She wants to reach in 15 min $\frac{15}{60} hours = \frac{1}{4} hours$

Her average speed should be $= \frac{Distance}{time}$ $= \frac{4 km}{\frac{1}{4} hrs } = 16 km/hr$