Question
The average height of a
basketball team consisting of 18 players is 185 cm. If the height of the coach and the assistant coach is included, the average height of the team increases to 186.5 cm. Find the average height of the coach and the assistant coach.Solution
ATQ,
Sum of height of the players = 185 × 18 = 3330 cm Sum of height of the players and coaches = 186.5 × 20 = 3730 cm So, the sum of height of the coaches = 3730 - 3330 = 400 cm So, the required average = (400/2) = 200 cm Alternate Solution: Change in the average = 186.5 - 185 = 1.5 cm Because of the addition of 2 coaches, the height of 20 members (18 players + 2 coaches) is considered. So, the additional height added to the players' total height = 1.5 × 20 = 30 cm So, the sum of the heights of the two coaches = 2 × 185 + 30 = 370 + 30 = 400 cm So, the required average = (400/2) = 200 cm
Which of the following writs is issued to prevent a person from holding public office from doing any work to which he is not entitled?
The East-West corridor, which is a part of the Golden Quadrilateral super highways, links which two cities of India from the following?
What are the hallmark symptoms of Foot-and-Mouth disease in cattle? Â
Which among the following is an agricultural festival of Arunachal Pradesh and celebrated by the Galo tribe?
In the Indian Constitution, the provisions relating to the Finance Commission are given in this article?
When was the High Court and Supreme Court Judges (Salaries and Conditions of Service) Amendment Bill, 2021 introduced in Lok Sabha?
SCO summit 2019 washeld in which country?Â
Who became youngest girl in the world to conquer Mount Everest and Mount Elbrus (highest peak Europe)?
What is the theme of the 9th Ayurveda Day in 2024?        Â
Among the following options, which languages in India have not been granted the status of classical language?
Relevant for Exams:
