Study the given bar-graph and answer the question that follows.
The bar-graph shows the production of refrigerators (in thousand) by five different companies A, B, C, D and E during 2004 to 2007.
What is the ratio of the average production of the refrigerators by companies A, B and E taken together for the years 2004-2005 to the average production of the refrigerators by companies C and D taken together for the years 2005-2006?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 19 : 43.
the production of the refrigerators by companies A of 2004-2005 = 110
the production of the refrigerators by companies B of 2004-2005 = 160
the production of the refrigerators by companies E of 2004-2005 = 300
the average production of refrigerators by companies A, B and E taken together for the years 2004-2005 = (A + B + C)/3 = (110 + 160 + 300)/3 = 190
the production of refrigerators by companies C of 2005-2006 = 370
the production of refrigerators by companies D of 2005-2006 = 490
the average production of the refrigerators by companies C and D taken together for the years 2005-2006 = (C + D)/2 = (370 + 490)/2 = 860/2 = 430
Rato between them = 190 : 430 = 19 : 43