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31 May, 09:02

A teacher had 24 red pens. If the ratio of red pens to blue pens she owned was 8:7, how many pens did she have total

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Answers (2)
  1. 31 May, 09:05
    0
    45 pens.

    24 : 8 = 3 Then you need to time 3 and 7 together

    3 x 7 = 21 Then add the total of pens the teacher has

    21 + 24 = 45 pens
  2. 31 May, 09:07
    0
    For every 8 red pens she has, she has 7 blue pens.

    So, she has 21 blue pens.

    In total, she has 45 pens.
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