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Priya and Wei Jie's beads — glass and plastic

Priya and Wei Jie make bracelets, and each of them has the same total number of beads in his or her box: 200 beads, made up only of glass beads and plastic beads. Priya has 25 more glass beads than Wei Jie. Wei Jie has 60 glass beads in his box. Each glass bead costs $0.90 and each plastic bead costs $0.15. Each glass bead weighs 5 g and each plastic bead weighs 1 g. (a) Whose beads are worth more in total, and by how much? (b) What is the total weight of Wei Jie's beads, in kilograms?

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