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LekaFEV [45]
3 years ago
12

Singapore math

Mathematics
1 answer:
algol [13]3 years ago
4 0

Answer

The fraction of blue beads is 1 - 2/3 - 1/4 = 1/12  

If the total number of beads is t then  

red - blue = 42  

2t/3 - t/12 = 42  

therefore  

7t/12 = 42  

therefore  

t = 12x42/7 = 72

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