Question: 
In 2007, the arithmetic mean of the annual incomes of Rahim and Karim was Taka 3800. The arithmetic mean of the annual incomes of Karim and Ripon was Taka 4800, and the arithmetic mean of the annual incomes of Ripon and Rahim was Taka 5800. What is the arithmetic mean of the incomes of the three?
3200
1200
2400
4800
None of them
Answer: 
4800
Last Updated: 
18/09/2020 - 01:17