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Find the average of five numbers a, b, c, d and e such that b = 20, and a is 20% more than that of ‘b’. ‘c’ is 10 less than &ls...
In a factory, the average salary of all employees is Rs. 5600 and the average salary of 24 supervisor is 7200. If the average salary of labours is 4800,...
The average weight of a group of 30 employees is 65 kg. If an additional five employees, each with an average weight of 72 kg, are added to the group, w...
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 70 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The average weight of a group of five persons, A, B, C, D, and E is 60 kg. If another person K joins the group then the average weight of the group is d...
The average weight of 12 students in a dance class is 45 kg. If the weight of 3 instructors is also included, then the new average weight of each person...
"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.
Average run scored by a batsman in first ‘x’ matches is 20. In next 5 matches he scored runs with an average of 60 so that his overall average incre...
A bowler gives 15.2 runs per wicket. He gives 32 runs and takes 4 wickets in the last match after which his average becomes 14.4 runs per wicket. How ma...
Average of 8 numbers is 80. If average of first four and last two numbers is 70 and 60, respectively then find the fifth number given that ratio of fift...
