71. The weight of a person was entered incorrectly as 83 kg instead of 63 kg. As a result, the average weight of a group of people increased by 500 gm. What is the total number of people in the group?
72. The average of 18 numbers is 37.5. If six numbers of average x are added to them, then the average of all the numbers increases by one. The value of x is:
73. The average of 44 consecutive odd numbers is 144. What is the largest number?
74. Average of all even numbers between 104 and 148 is.
75. In a one day match of 50 overs in an innings the team A had a run rate of 5.3 runs per over. Team B is playing and 5 overs are left and the required run rate to tie the match is 7.2 per over to match the score of team A. What is team B's score?
76. The average of x numbers is y2 and the average of y numbers is x2. So the average of all the numbers taken together is:
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