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The sum of three numbers is 98. the ratio of the first to the second is 2/3, and the ratio of the second to the 3rd is 5/8. What is the second number?

2007-12-02 16:51:30 · 1 answers · asked by Anonymous in Science & Mathematics Mathematics

1 answers

x + y + z = 98
x/y = 2/3
y/z = 5/8
x = 2y/3
z = 8y/5
2y/3 + y + 8y/5 = 98
10y + 15y + 24y = 1,470
49y = 1,470
y = 30

x = 20
z = 48
20 + 30 + 48 = 98

2007-12-02 17:10:00 · answer #1 · answered by Helmut 7 · 0 0

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