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20-12-2019
Mathematics

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A plastic bin contains red, yellow, and green key chains. Out of 350 keys, 10% are yellow, of the remaining key chains, 60% are green. How many red key chains are inside the bin?

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20-12-2019

Answer: 105

Explanation:

60% + 10% = 70% = yellow and green

30% = red

350/10 = 35 x 3 = 105

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