Sales of red colour refrigerator in all the given years in thousands = (20 + 30 + 45) = 95
Sales of Blue colour refrigerator in all the given years in thousands = (25 + 32 + 48) = 105
Sales of Lemon colour refrigerator in all the given years in thousands = (47 + 23 + 32) = 102
Sales of Grey colour refrigerator in all the given years in thousands = (2 + 27 + 34) = 63
Sales of White colour refrigerator in all the given years in thousands = (32 + 45 + 43) = 120
Highest selling colour is white. Percentage of volume it accounted for, is given by,
Required percentage \(=\frac{120}{95+105+102+63++120}\times100\)
\(=\frac{12000}{485}=25\%\)(approx)
Hence, option B is the correct answer.The correct option is (B): white, 25%