Question
Average weight of all the people in a group is 61 kg.
When two people of weight 66 kg and 84 kg left the group, average weight reduces by 1 kg. Find the number of people in the group now.Solution
Let the number of people initially be 'n'.
So, 61n - 60 × (n - 2) = 66 + 84
Or, 61n - 60n + 120 = 150
Or, n = 30
Required number of people = 30 - 2 = 28
Consider the following Statements about Mission Indradhanush and choose the option with correct Statements.
- Mission Indradhanush was launch...
With reference to the Government portal UDID (Unique Disability ID), consider the following statements:
1. Ministry of Social Justice & Empowerme...
Consider the following Statements about Pradhan Mantri Garib Kalyan Package Insurance Scheme and choose the option with correct Statements.
Consider the following Statements.
(i) Pradhan Mantri Fasal Bima Yojana (PMFBY) wa launched in 2016.
(ii) The scheme is being implemented ...