For the following questions answer them individually
When brake is applied in a bicycle, the brake pad touches the wheel. Now what stops the movement of the wheel?
Bala is facing west and moves forward; then he turns $$45^\circ$$ to his left. Which direction is he facing now?
The radius of a circular wheel is 7/4 m. How many revolutions does the wheel make to cover 22 km?
The Simple Interest on some amount of money for 2 years is Rs.400. If 'r' is 4% more, then the Simple Interest will be Rs.400 more. What is the original amount of money?
If P, Q and R can complete a job in 24, 16 and 12 days respectively, how long will they take to complete the job working together?