The table given below represents number of bikes of five different brands sold…
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The table given below represents number of bikes of five different brands sold from 2001- 2005, with the help of data given in the table, answer the following questions.

If sales of Suzuki in the year 2006 is increased by 5% and sales of Yamaha decreased by 5%, then what is the difference of averages of sales of Suzuki in year 2001 and 2006 and average sales of Yamaha in 2002 and 2006?
- A.
2330
- B.
2345
- C.
1170
- D.
2000
Attempted by 15 students.
Show answer & explanation
Correct answer: B
Ans. B.
By the given table,
Sales of Suzuki in year 2005 = 8800
Sales in year 2006 due to 5% increase = 8800 + 440 = 9240
Average sales of Suzuki in year 2001 and 2006 = (8500+9240)/2 = 8870
Sales of Yamaha in year 2005 = 7000
In 2006, due to decrease of 5% sales= 7000 – 350 = 6650
Sales of Yamaha in year 2002 = 6400
Average of sales in 2002 and 2006 of Yamaha = (6400+6650)/2 = 6525
Now difference of average sales of Suzuki and Yamaha
= 8870 – 6525 = 2345