In Arun’s opinion, his weight is greater than 65 kg but less than 72 kg. His brother does not agree with Arun and …

The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be…

Average of n numbers is a. The first number is increased by 2, second one is increased by 4, the third one is increased …

The average age of a husband and wife at the time of their marriage was 25 years. A son was born to them two years after…

If the average temperature of first four days of the week was 39°C and the average temperature of the week was 40&de…

The average of 11 results is 60. If the average of first six results is 58 and that of last six is 63, find the 6<sup…

Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total c…

The average weight of 12 crewmen in a boat is increased by $$\frac{1}{3}$$ kg, when one of the crewmen whose weight is 5…