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5 votes
A set of silverware contains 30 pieces. The set contains only spoons, forks, and knives. It contains the same number of spoons and forks and twice as many spoons as knives. How many forks are there in the set?

User Sivers
by
7.5k points

2 Answers

6 votes
s = f (where s = number of spoons and f = number forks)
s = 2k ( k = number of knives)
s + f + k = 30
2s + k = 30 ( because s = f)
4k + k = 30
k = 6
Number of forks (f) = twice number of knives = 2*6 = 12 Answer



User MRHwick
by
8.7k points
4 votes
Let the number of knife be x.
Knife = x
Spoon = 2x
forks = 2x

Total = 30
x + 2x + 2x = 30
5x = 30
x = 6

Knife = x = 6
forks = 2x = 12
Spoon = 2x = 12

Answer: There are 12 forks.

User Vasanth Umapathy
by
8.2k points
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