Question
Study of communities is known
asÂSolution
Synecology is the ecological study of groups of interacting species (communities).
In an examination, the average marks obtained by the students is 75. After correcting the quantitative mistakes, the average of 100 students is reduced ...
The average of 8 numbers is 12. If the 2 is added in 1st number, 4 is added in 2nd number, 8 is added in 3rd number and in the same way the number are a...
There are three distinct numbers ‘a’, ‘b’ and ‘c’. If, a = 150, (a + b) = 450 and (c – b) = 60, then find the average of a, b and c.
...A company produces 3 types of items A, B, and C. The cost of producing A is ₹200, B is ₹300, and C is ₹500. If the company produces 400 units of A...
In a batch of 36 students, the average age is 25 years. Later, 6 new students join the batch and the average age of the entire class drops by 1.5 years....
The average of 18 numbers is 40, and the average of the first 9 numbers is 45. Find the average of the remaining 9 numbers.
Determine the number of Girls in a school of 60 Student when you know that the average weight of all Student is 50 kgs, the average weight of boys...
The cost of booking a bus consists of a fixed charge and a variable charge per seat. When 75 seats are booked, the average cost per seat is Rs. 36. Howe...
In an examination the average marks of Rohit is 62. If he got 19 more marks in science and 26 more marks in maths then his average would have been 67. F...
The average cost of 4 chairs is Rs. 11000. The average cost decrease by 15% when one more chair is included. What is the cost price of the 5th
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