Question
The average weight of a group of NN children is (N+1)(N + 1) kg. When a child weighing 36.5 kg leaves the group, the average weight decreases by 0.5 kg. Determine the original number of children in the group.
More Average Questions
- The average number of taxis of three colours (black, white and yellow) in a taxi stand is 150. The number of black taxis is 50 more than that of yellow tax...
- The average age of a group of 10 students is 12 years. Two persons of age 15 years and 20 years, left the group and 2 persons of age 54 years and 101 years...
- The average of two consecutive even numbers is 73. If the smaller number is increased by 40% and the larger number is decreased by 40%, then find the diffe...
- The average of 20 observations was found to be 47. Later, it was discovered that one observation 45 was wrongly recorded as 65. What is the correct average...
- Average run scored by a batsman in first ‘x’ matches is 42. In next 13 matches he scored runs with an average of 62 so that his overall average increased b...
- The average weight of 10 individuals in an organization is 50 kg. When two new members, Akash and Binny, join the organization, their weights being in the ...
- Average of four numbers is 25. Sum of smallest and largest number is 54. If difference between other two numbers is 2, then find the square of second small...
- X and Y have weights of 36 kg and 60 kg, respectively. Z weighs 12 kg less than X. Calculate the average weight of X, Y, and Z.
- The average age of a class of 23 girls is 15 years. If 2 new girls having average age of 10 years join the class, then the average age of the class becomes...
- The average price of two mobile phones, namely 'P' and 'Q' is Rs. 15,600 whereas the average price of phones 'Q' and 'R' is Rs. 16,800. If the average pric...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)