Question
Present average age of 4 friends: βAβ, βBβ,
βCβ and βDβ is 22 years. If their ages are in the arithmetic progression in the same order and βDβ is 4 years older than βBβ, then find the sum of present ages of βAβ and βCβ.Solution
Common difference between ages = (4/2) = 2 years. So, let present ages of βAβ, βBβ, βCβ and βDβ be βxβ, (x + 2) years, (x + 4) years and (x + 6) years, respectively According to question: x + x + 2 + x + 4 + x + 6 = 88 Or, 4x = 76 Or, x = 19 years (Age of A) Present age of βCβ = x + 4 = 19 + 4 = 23 years Required sum = 19 + 23 = 42 years
IFFCO's nano (liquid) DAP fertilizer has been launched for commercial sale at _____ per 500 ml bottle toΒ help increase quality and quantity of agricul...
What feature is newly introduced in NACH 3.0 to boost cybersecurity?Β
What was the theme for Nasha Mukt Bharat Abhiyaan Run on the occasion of international day against drug abuse this year?
The Ministry of Consumer Affairs, Food and Public Distribution, Textiles and Commerce and Industry has recently launched wheat flour (Atta) under βBha...
What is the name of the state health insurance scheme in Rajasthan that the government seeks to integrate with Ayushman Bharat?
The World Crafts Council International is considering ______ as a potential nominee for World Craft City due to its significant craft clusters.
Where are the headquarters of the World Economic Forum?
Who won the gold medal in the men's javelin throw competition at the Paavo Nurmi Games 2024 in Turku, Finland?
When is World Telecommunication Day celebrated every year?
Which former Indian footballer and 1962 Asian Games gold medalist passed away at age 81 in 2025?