The King

The King wants to divide his sons equally. He has 42 rubies and 45 diamonds. How many sons and how will they share them?

Correct result:

n =  3
r =  14
d =  15

Solution:

$r=42\mathrm{/}n=42\mathrm{/}3=14$
$d=45\mathrm{/}n=45\mathrm{/}3=15$

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