Question
The average weight of 8 students in a class is 35 kg. If
the weight of 4 teachers is also included, then the new average weight of each person (teacher + student) in the class becomes 40 kg. Find the average weight of the four teachers.Solution
ATQ, Let the average weight of the four teachers be 'x' kg. So, total weight of the four teachers = 4 × x = '4x' kg. ATQ: 35 × 8 + '4x' = 40 × (8 + 4) Or, 280 + 4x = 40 × 12 Or, 280 + 4x = 480 Or, 4x = 480 - 280 = 200 Or, x = 200 ÷ 4 = 50 Therefore, the average weight of the four teachers is 50 kg.
Pradhan Mantri Swasthya Suraksha Yojana (PMSSY) was launched in the year______.
Consider the following statements:
A) Judicial decisions are bound by precedent in common law, whereas quasi-judicial decisions are generally not...
Which country announced its withdrawal from the World Health Organization (WHO) in January 2025?
Dr. Katalin Karikó and Dr. Drew Weissman, both of the University of Pennsylvania, achieved their breakthrough by harnessing the power of genetic materi...
In which of the following ways can 1 Volt be expressed?
Among the following famous personalities, whose autobiography is ‘The Road Ahead’?
In which Indian state is the 'Pookode Lake' located?
Which of the following rivers is the river precompiled?
How many countries are members of FIFA?
Consider the following statements regarding the Health in India-2020 Report' released by the Ministry of Statistics and Programme Implementation
<...
Relevant for Exams:
