In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10

given: 1/2(5) = 3
let 5 = x
1/2(x) = 3
lets change the equation to 1/3x
(1/3)(1/2)(x)(2) = 3(1/3)(2)
1/3x = 2
since 10 is a multiple of x by 2,
(1/3)(x)(2) = 2(2)
therefore, (1/3) of 10 = 4
i hope you understand :)

but 1/2 of 5 is 2.5!!!

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6.25

answer is 4