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24 January, 17:54

Lexie began making posters for the school awards banquet. She can make 6 posters per minute. Zach joined her 10 minutes after she started. He can make 7 posters per minute. Lexie continued to make 6 posters per minute. Together, they made 125 posters. How many posters did zach make?

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  1. 24 January, 18:01
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    10 * 6 = 60 by the time Zach joins so 125-60 = 65

    Now 6 (lexie) + 7 (zach) = 13 (together) and 65/13 = 5.

    6*5 = 30 and 7*5 = 35. 35+30 = 65

    Your answer is 5.
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