Without stoppages, the speed of a bus is $90 \text{ km/h}$ and with stoppages, its average speed is $75 \text{ km/h}$. For how many minutes does the bus stop per hour?

Options:

• A: $10 \text{ min}$
• B: $12 \text{ min}$
• C: $15 \text{ min}$
• D: $18 \text{ min}$

Related Practice Questions:

• Which of the following artifacts, extensively found at Burzahom and Gufkral, specifically indicates that the Neolithic inhabitants of Kashmir practiced sewing animal skins for clothing to survive the harsh winters?
• The earliest known evidence of rock art in India, in the form of 'Cupules' (hemispherical cup-shaped depressions carved into rock), belongs to the Lower Paleolithic age and was found at:
• The first human colonization of the fertile Ganga plains, as evidenced by archaeological discoveries at Sarai Nahar Rai and Mahadaha, took place during which period?
• Which prehistoric site located in the Thar Desert of Rajasthan provides a continuous and undisturbed profile of Lower, Middle, and Upper Paleolithic cultures?