Choose the correct alternative for the given relation.
$6 : 18 :\, : 4 : \,?$
$2$
$6$
$8$
$16$
The relationship is $x : -y$
Estonia is related to Rouble in the same way as Chile is related to…….?
Ocean : Pacific : : Island : ?
$12 : 144$
Ampere : Current
Choose the correct alternative for the word belongs to the same group.
Basket : Pail : Pan
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