Question

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Answer 1

Answer:

i . 90 percent

2 ..lite music

3 . 10 type of

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Answer 2

Answer:

i) Let the total number of students be x, then,

According to the question

10% of x = 20

⇒ 10/100 * x = 20

⇒ x = 20 * 100/10

⇒ x = 2000/10

⇒ x = 200

Therefore total 200 students were surveyed.

ii) Through the pie chart we can clearly see that the maximum (40%) number of students like light music

iii) Total number of CDs = 1000

Percent of classical music = 10%

Total number of CDs required for classical music = 10% of 1000

                                                                                  = 10/100 X 1000

                                                                                  = 100

Percent of Semi-classical music = 20%

Total number of CDs required for classical music = 20% of 1000

                                                                                  = 20/100 X 1000

                                                                                  = 200

Percent of Semi-classical music = 30%

Total number of CDs required for classical music = 30% of 1000

                                                                                  = 30/100 X 1000

                                                                                  = 300

Percent of Semi-classical music = 40%

Total number of CDs required for classical music = 40% of 1000

                                                                                  = 40/100 X 1000

                                                                                  = 400

There you go mate.

Hope it was helpful.

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