Question
P6.FR.TL.16010131-A1
Three girls, Cathy, Yoko and Risa had a total of 420 pens. Some exchanges were made. First, Cathy gave Yoko as many pens as Yoko had. After that, Yoko gave 13 of whatever she had then to Risa. Finally, Risa gave 13 of whatever she had to Cathy. As a result, they each had the same number of pens. How many pens did Cathy have at first?
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STUDENT

Primary 6 FRACTIONS P6.FR.TL.16010131

27 Jun 2024, 10:45 AM

Three girls, Cathy, Yoko and Risa had a total of 420 pens. Some exchanges were made. First, Cathy gave Yoko as many pens as Yoko had. After that, Yoko gave 13 of whatever she had then to Risa. Finally, Risa gave 13 of whatever she had to Cathy. As a result, they each had the same number of pens. How many pens did Cathy have at first?
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