A box contains 5 marbles each having a weight of 66 grams. The box also contains 25 marbles each having a weight of 96 grams. What is the average weight of all the marbles in the box?
The sales(in rupees) of a gift shop for six consecutive days is 5028, 3042, 4446, 786, 5376 and 2838. What is the overall average sale for these six days?
Two of the 28 numbers are 24 and 58, If these two are excluded the average of the remaining 26 numbers is 1 more than the average of all the 28 numbers. What is the average of all the 28 numbers?
If the average of p and q is 20, the average of q and r is 54, and of r and p is 64, then what is the value of p?
We have three equations (p + q)/2 = average of pq, (q + r)/2 = average of qr and (r + p)/2 = average of rp. Adding these three we get p + q + r = (average of pq + average of qr + average of rp) = (20 + 54 + 64) = 138. So p = 138 - (q + r) = 138 - (2 × average of q and r) = 138 - 2 × 54 = 30.
What is the increase in the average of 11 numbers if the number 13 is replaced by 112?
This Blog Post/Article "Averages Quiz Set 011" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2017-04-07.