Directions: The following bar graph shows the monthly incomes (in thousand rupees) of Aman, Suman, and Jyoti in six consecutive years.
What was the difference between the average monthly income of Jyoti over all the six years taken together and Aman's monthly income in the year 2006 (in Rs)?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 3000.
Sum of jyoti's income in all the 6 years = (9 + 11 + 18 + 27 + 26 + 35) × 1000 = Rs 126000
We know that,
Average = Sum of observations/Number of observations
So, Average = 126000/6 = Rs 21000
Aman's income in 2006 = Rs 18000
Hence, Required difference = 21000 - 18000 = Rs 3000