For the following questions answer them individually
An amount was invested at a simple rate of interest p.a. for 5 years. It would have fetched Rs.300 more had it been invested at 2% higher rate. What was the amount invested?
P is 4 times faster than Q in doing a job. Q takes 27 more days than P to finish the job. If they work together, in how many days will the work be finished?
Car P covers a certain distance in 11 hours at a speed of 66 kmph. Car Q covers 242 km more than car Pin the same time. Find the average speed of Car Q.