A bulletin board has 20 notices pinned over it. If 17 of them are removed, then what percentage of notices is left over the bulletin board?

35%

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15%

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65%

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85%

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Solution

The correct option is B 15%
Total number of notices = 20
Number of notices removed = 17
Number of notices left = 20 - 17 = 3

Percentage of notices left over the bulletin board
$= \frac{3}{20} \times 100 = 15 %$

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A bulletin board has 20 notices pinned over it. If 17 of them are removed, then what percentage of notices is left over the bulletin board?

The correct option is B 15%Total number of notices = 20 Number of notices removed = 17 Number of notices left = 20 - 17 = 3 Percentage of notices left over the bulletin board =320×100=15%

The correct option is B 15%
Total number of notices = 20
Number of notices removed = 17
Number of notices left = 20 - 17 = 3

Percentage of notices left over the bulletin board
$= \frac{3}{20} \times 100 = 15 %$