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ATQ, Let the total work be 'W' units and eiciency of each man be 'E' units/hour Let the number of men required be 'M'. ATQ: {(30 X 16 X 8 X E)/W} = {(M X 20 X 1.2E X 6)/(3 X W)} Or, M = 80
Given a set of 25 numbers, the overall average is 60. The first 11 numbers in this set have an average of 48, while the last 15 numbers have an average ...
The average age of Renu and Rekha after three years will be 30 years, while the average age of Priya and Renu is currently 32 years. Additionally, the a...
Average of 20 numbers is 90. Average of first 8 numbers is 103 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numb...
The average of ten positive numbers is calculated as 56. On observing, it was found that two numbers 64 and 32 are wrongly interpreted as 76 and 52, res...
The average height of a volleyball team of 12 Brazilian players is 185 cm. If the height of the coach is included, the average height increases by 3 cm....
In a Company the average income of all the employees is Rs. 20000 per month. Recently the company announced increment of Rs. 2000 per month for all the ...
Anil bought 27 notebooks for Rs.1280 from shop A and 20 notebooks for Rs.1211 from shop B. What is the average price he paid per book?
The average score of a class of boys and girls in examination is X. The ratio of boys and girls in the class is 4:3. If the average score of the boys (X...
There are 15 numbers such that average of first 12 numbers is 65 while the average of last five numbers is 76. Find the 12th number, if the ratio betwee...