The average age of a group of 20 students is 40 years. Two persons of age 44 years and 33 years, left the group and 2 persons of age 45 years and...
The average weight of 4 persons is 30 kg. The heaviest person’s weight is 24 kg more than the lightest person’s weight. If the average weight of the...
The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs, If these two innings are excl...
The average age of A, B & C is 48 years. Ratio of present ages of A to C is 3:5 and present age of B is 33.33% more than that of A. find the difference...
Komal bought 20 kg rice for Rs 30 per kg, b kg rice for Rs 35 per kg and (b + 4) kg rice for Rs 25 per kg. She mixed all type of rice together and the a...
The average age of three children is 21 years. If their ages are in the ratio 3:5:6. Find the age of the youngest child.
A bowler gives 15 runs per wicket. He gives 30 runs and takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many w...
The average weight of a class of 25 student is 60 KG. If X is student joined the class, than the average weight of whole class increases by (2X – 7)...
Average of 20 numbers is 90. Average of first 8 numbers is 114 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numb...
The average expenditure of a man for the first 8 month is Rs.6000 and for the next 4 months is Rs.8000. If he saves 10000 in that year then find his ave...
