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 Ripon and Rahim was TaKa5800. What is the arithmetic mean of the incomes of the three ?

Created: 6 years ago | Updated: 3 years ago

3200

1200

2400

4800

None of them

Bangladesh Bank Bangladesh Bank - Assistant Director - 2012 গণিত পরিসংখ্যান (Statistics)

ব্যাখ্যা

0 565

best des

(Rahim + karim)/2 + (Karim + ripon)/2 + (Ripon + Rahim)/2 = 3800 + 4800 + 5800
So, (Rahim + Karim + Ripon)/3 = 14400/3 = 4800

6 years ago

Md Azizur Rahman

Founder of Satt

পরিসংখ্যান (Statistics)

Created: 6 years ago | Updated: 2 years ago

The mean only

The median only

The standard deviation only

The mean and median only

The mean and the standard deviation only

Bangladesh Bank Bangladesh Bank - Assistant Director - 2011 গণিত পরিসংখ্যান (Statistics)

0 393