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.

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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?

  1. A.

    2330

  2. B.

    2345

  3. C.

    1170

  4. D.

    2000

Attempted by 15 students.

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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

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