2 years ago

Singapore math

Mathematics

1 answer:

algol [13]2 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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