Question
In organic farming, which of the following is used as a
biological nitrogen source?Solution
Organic farming avoids synthetic nitrogen sources and uses compost, FYM, and green manures to supply nitrogen.
The average height of each person in group 'C' having 25 people is 10 cm less than the average height of each person in group 'D' having 20 people. If t...
In a school of 50 students, the average score in a French exam is 72 marks, but when one student transferred out and 4 new students joined the school, t...
- The number of students in class 'A' is 100, and the ratio of the number of girls to boys is 2:3. If the average number of boys in classes A and B is 105, a...
Average age of a class of 25 students is 13 years. Average age of the class is increased by 30 months if the age of the teacher is included. Find the ag...
The average cost of 3 chairs is Rs. 10000. The average cost decrease by 22% when one more chair is included. What is the cost price of the 4th
What is the average of odd numbers greater than 10 but less than 30?
- A student calculates the average of five two-digit numbers. If one of them is reversed and the new average increases by 9, and all the numbers are consecut...
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...
The average of the current ages of 'Anoop', 'Bhanu', and 'Rakesh' is 40 years. Their ages are in arithmetic progression (AP), wit...
There are two sections A and B of a class, consisting of 38 and 42 students, respectively. If the average weight of the students of section A is 55 kg a...
