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A necklace is made of 24 beads that are either white or green.
The ratio of white beads to green beads in this necklace is 5 to 1.
A second necklace is made of 40 beads that are either white or green.
The ratio of white beads to green beads in this second necklace is 5 to 3.
How many more green beads are in the necklace with 40 beads than in the necklace with 24 beads?
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I will solve it step by step.
(a) 24 beads necklace: 5x + x = 24; 6x = 24; x = 24/6 = 4.
There are x = 4 green beads.
(b) 40 beads necklace: 5y + 3y = 40; 8y = 40; y = 40/8 = 5.
There are 3y = 3*5 = 15 green beads.
(c) Now, to answer the question, you need subtract 4 from 15.
Solved.