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The correct answer is D
The average of 17 numbers is 48. The average of first 9 numbers is 45 and average of next 9 numbers is 52. If 9th number is excluded, then th...
A class of 30 students appeared in a test. The average score of 12 students is 80, and that of the rest is 75. What is the average score of the class?
Average run scored by a batsman in first ‘x’ matches is 42. In next 13 matches he scored runs with an average of 62 so that his overall average incr...
The average weight of a class of 25 student is 60 KG. If X is student joined the class, than the average weight of whole class increases by (2X – 7)...
The average of five even numbers is 72. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
In an examination the average marks of Rohit is 62. If he got 19 more marks in science and 26 more marks in maths then his average would have been 67. F...
The average expenditure of a man for the first 7 month is Rs.5000 and for the next 5 months is Rs.8000. If he saves 12000 in that year then find his ave...
"X" acquired 15 books at a cost of Rs. 840 each and an additional 25 books at a price of Rs. 480 each. Determine the average price per book "X" bought.
A bowler gives 15 runs per wicket. He gives 30 runs and takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many ...
2040, 600, 240, 150, ?, 121.875
