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The correct answer is D
The average cost price of 21 pens (having equal cost price) decreased by Rs.3, when one of the pen is replaced by a new pen having cost price of Rs.55. ...
The average of first five multiples of 3 is
Ashish bought 25 notebooks for Rs.1230 from shop A and 12 notebooks for Rs.805 from shop B. What is the average price he paid per book?
Each side of a rhombus is 20cm long and the length of one of its diagonals is 24cm, then find the area of the rhombus.
The average expenditure of a man for the first 3 month is Rs.6000 and for the next 9 months is Rs.7500. If he saves 15000 in that year then find his ave...
The average weight of 7 boxes P, Q, R, S, T, U and V is 72kg. Another box A is added to group and the average now becomes 70kg. If another box C whose ...
The average of five even numbers is 64. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
The average number of books on history, polity and geography in a library is 165, and the average number of books on history and geography is 140. If th...
A batsman scores 87 runs in the 21st match of his career. His average runs per match increases by 2. What was his average before the 21st match.
The average cost of 3 chairs is Rs. 10000. The average cost decrease by 22% when one more chair is included. What is the cost price of the 4th
