Part C - Elementary Mathematics
A car runs for one hour with a speed 60 km per hour, for 2 hours with a speed 70 km per hour and for 5 hours with a speed 50 km per hour. What is the average speed of the car in km per hour?
The ratio between the original price of a movie ticket and increased price of the movie ticket is 10 : 13. What is the increase in the revenue of the cinema hall, if the original price of the movie ticket was ₹250 and total 3600 tickets were sold as per the maximum capacity of the cinema hall that is 3600 persons?
When the numbers 7807, 8022 and 8667 were divided by the greatest number x, then the remainder in each case was the same. The sum of the digits of x is:
Two cyclists, M and N, start from the same point on a 1500 m circular track, cycling in opposite directions. M cycles at 18 km/hr and N at 22 km/hr. How long (in seconds) will it take for them to meet?
The population of a district is 372000, out of which 168000 are males. 20% of the population is literate. If 20% males are literate, then what percentage of females are literate?
The average age of 26 students of a class is 43 years. If the age of the teacher is also included, the average age of the whole group becomes 44 years. The age (in years) of the teacher is:
