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The correct answer is A
In an Aerobic class, the average age of all the members was 54.5 years, 11 members left the class and 7 new members joined. If the average age increased...
The average of the first four numbers is 'x+30', the average of the next 10 numbers is 'x', and the average of the remaining 6 numbers is 'x−20'. If t...
The average of a series of 30 numbers is 70. The difference between the largest number and the smallest number is 140. If the largest and the smallest n...
Average age of 3 children born at intervals of 2 years is 8. How old is the eldest child?
Average of 8 numbers is 70. If average of first four and last two numbers is 80 and 45, respectively then find the fifth number given that ratio of fift...
The average of 19 numbers is 15.The average of first 9 numbers are12 and that of the last 9 numbers are15. What will be the 19th number?
Average weight of a team of 16 persons is 37 kg. When one more person joins the team, the average weight of the team increases by 4 kg. Find the weight ...
In an examination the average marks of Rohit is 63. If he got 20 more marks in science and 28 more marks in maths then his average would have been 69. F...