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Elmo and Farah had 153 crystal plates altogether. 1/3 of Elmo's crystal plates is 15 more than 1/6 of Farah's crystal plates. How many crystal plates did Elmo have?

 Jan 28, 2022
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Excess = 15 × 3 = 45
3u + 6u = 9u
9u = 153 - 45 = 108
1u = 108÷ 9 = 12
Elmo = 3u + 45 = 3 × 12 + 45 = 81 plates

 Jan 28, 2022
 #2
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Guest Jan 28, 2022

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