The ratio of tables and chairs in a room is 7 : 9. If there are 560 tables and chairs in the room, then what is the number of chairs ?
Given, Total number of tables and chairs = 560
Ratio of tables and chairs in the room = 7 : 9
Let the number of tables and chairs in the room are 7p and 9p respectively
$$=$$> Â 7p + 9p = 560
$$=$$> Â 16p = 560
$$=$$> Â Â 1p = 35
$$\therefore\ $$The number of chairs in the room = 9p = 9(35) = 315
Hence, the correct answer is Option C
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