The mean of a set of 8 numbers is 80. If the average of the first four numbers and the last two numbers is 90 and 60, respectively, and the ratio of the...
The average number of balloons distributed among five kids is 9. If each kid received 1 balloon more than the kid before, then find the highest number o...
There are three numbers. If the average of any two of them is added to the third number, the sums obtained are 177, 163 and 138. Whatis the average of ...
- The number of students in class 'A' is 100, and the ratio of the number of girls to boys is 2:3. If the average number of boys in classes A and B is 105, a...
The average salary of 36 employees ( Teachers+principals) in a School is Rs.10,375. A Principal in the School receives a salary that is 125% higher than...
In a factory of 40 labours, if the two labours left the job whose wages were Rs. 950 and Rs. 1050 and two new labours join the factory which results in ...
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
The average monthly salary of a group is ₹52,000. A new member joins earning ₹70,000, increasing the average by ₹1,000. Find the total salary of t...
A number is such that when it is multiplied by 5, it gives another number which is as much above from 210 as the original number (itself) is below 210. ...
Find the average of prime numbers between 50 and 70.
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