The correct answer is D
The average age of a class of 18 girls is 14 years. If 2 new girls having average age of 10 years join the class, then the average age of the class beco...
In an examination the average marks of Rohit is 54. If he got 18 more marks in science and 22 more marks in maths then his average would have been 58. F...
The average salary of all males and females in an office is Rs.16000 and the total number of females in the office is 16. If the average salaries of mal...
The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg andthat of B and C be 43 kg, then the weight of B is :
The average of 17 numbers is 48. The average of first 9 numbers is 45 and average of next 9 numbers is 52. If 9th number is excluded, then th...
The average of 10 numbers is 102. The average of the first 5 numbers is 78 and the average of the last 4 numbers is 46. What is the 6th number?
Determine the average marks achieved by six additional aspirants if the average score of 24 aspirants in a mock test is 67. Adding the marks of these si...
In a classroom, the combined average age of all students and their teacher is 17 years. The average age of the boys in the class is 13 years. If the tea...
The cost of packaging of the oranges is 15% the cost of fresh oranges themselves. The cost of oranges increased by 35% but the cost of packaging decreas...
The average price of 10 stickers is Rs.12 while the average price of 8 of these stickers is Rs.11.75. Of the remaining two stickers, if the price of one...
