Question
A 15-member group has two individuals aged 18 and 23.
When excluded, the average age of the rest increases by 3 years. Find the average age of all members.Solution
ATQ, Average age 'u' years. Total age 15u. Sum age 18+23=41. Remaining 15u−41. New average u+3. Equation: 15u−41=13(u+3) Solve: 15u−13u=41+39 ⇒80⇒2u=80 ⇒u=40
Below are given some parts of a sentence in jumbled order. Arrange the parts in the correct order to make a meaningful sentence.Â
1) land area i...
In which schedule of constitution lists are described?
Central Arid Zone Research Institute is situated in -
What is the nitrogenous waste excreted by shark?
- Which Indian state has the largest forest cover by area?
The Constitution (Scheduled Tribes) Order (Amendment) Bill, 2021, was introduced in Rajya Sabha by whom among the following Ministers for Tribal Affairs?
Where is Bilaspur located in India?
The first state in India to introduce a pension scheme for third genders is
The functions of NITI are
(1) Decentralized Planning
(2) Harmonization
(3) Capacity Building
(4) External Consultan...
Rajasthan's first 'solar lift plant' will be built on which river?
Relevant for Exams:
