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The correct answer is A
Average of 8 numbers is 70. If average of first four and last two numbers is 50 and 60, respectively then find the fifth number given that ratio of fift...
The average of 8 numbers is 22. When two new numbers 'p' and 'q' are added, the average increases by 3. If p - q = 10, find the value of q.
The average mark obtained by 130 candidates in a certain examination is 40. If the average marks of passed candidates are 45 and that of the failed cand...
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 cost of three chairs is Rs.16000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 4th
Find the value√(2k+11) where ...
Determine the average of all prime numbers that lie between 35 and 70.
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 age of 23 children and their teacher's age are 21 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?