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The average of some naturals number is 15. If 30 is added to first number and 5 is subtracted from the last number the average becomes 17.5 then the number of natural umber is
Correct Answer Is : 10
A boy found that the average of 20 numbers is 35 when he writes a number `61` instead of `16`. The correct average of 20 number is Correct Answer Is : 32.75 The average run of a player is 32 out of 10 innings. How many runs must he make in the next innings so as to increase his average by 6? Correct Answer Is : 98 The average weight of 3 men A,b and C IS 84KG.Another man D joints the group and the average now becomes 8okg. If another man E Whose weight is 3kg more then that of D, replace A, then the average weight of B,C,D E becomes 79kg. Then weight of A is Correct Answer Is : 75kg
The average marks obtained by 15 students including X are 70 and the average marks obtained by 14 students excluding X is 68. What is the marks obtained by X ? Correct Answer Is : 98 Mahendra Singh Dhoni has a certain average of runs for his 8 matches in IPL matches. In the ninth match he scores 100 runs and thereby increases his average by 9 runs His new average of runs is : Correct Answer Is : 28 The average score of three boys in mathematics is 30. When the score of a fourth boy is added to the total score of the three boys, the average is lowered to 25, What is the score of the fourth boy ? Correct Answer Is : 10 The Average score of a cricketer for 10 matches is 38.9 runs. If the average for the first six matches is 42, find the average of the last four matches: Correct Answer Is : 34.25 Average age of 30 boys in a class is 10 years. If however, the age of their teacher is also included, then the average increased, then the average increases by one year. What is the age of the teacher? Correct Answer Is : 41years The average age of a group of 40 students in a bus is 7 years. When the conductor`s age is included the average age is increased by one year, The age of the conductor is : Correct Answer Is : 48years