The speed of the train going from Nagpur to Allahabad is 100 km/h while when coming back from Allahabad to Nagpur, its s…

B was born when A was 4 years 7 months old and C was born when B was 3 years 4 months old. When C was 5 years 2 months o…

The average of two numbers is XY. If one number is X, the other is-

The average sale of car dealership was 15 cars per week. After a promotional scheme the average sale increased to 21 car…

A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years that…

Of the three numbers, the average of the first and the second is greater than the average of the second and the third by…

The average salary of all the workers in a workshop is Rs. 8,000. The average salary of 7 technicians is Rs. 12,000 and …

The average age of a class of 39 students is 15 years. If the age of the teacher is included, then the average increases…