There are 15 numbers such that average of first 12 numbers is 30 while the average of last five numbers is 48. Find the 12th number, if the ratio betwee...
The total number of students in class A and B is 72. The number of students in A is 40% more than that in B. The average marks of students in B are 50% ...
- The average speed of a car over the first 4 hours is 50 km/h. If the car needs to maintain an average speed of 60 km/h over a total of 8 hours, what should...
The average age of a group of four children is 11 years. From the group, one child, whose age was 6 years more than the average age, left. Four new chil...
The average weight of a group of five persons, A, B, C, D, and E is 70 kg. If another person K joins the group then the average weight of the group is d...
Average marks scored by Vineet in five subjects are 65. The average marks scored by him (excluding his highest and lowest marks) are 50 and lowest marks...
The average of 13 numbers is 10.The average of first 6 numbers is 8 and that of the last 6 numbers is 10. What will be the 13th number?
Average age of company A is 21 years and average age of both companies A and B is 13 years. If the ratio of number of employees in company A and B is 3:...
The average score of 70 candidates in the SBI PO exam is 40. If the candidates who passed have an average score of 49, while thos...
Average of 8 numbers is 50. If average of first four and last two numbers is 60 and 70, respectively then find the fifth number given that ratio of fift...
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