Question

A pack of cards (were/was) lying on the ground
fast please its urgent

Answer 1

A PACK OF CARDS WAS
LYING ON THE GROUND !!

NOTE: WE USE WERE WITH PLURAL AND WAS FOR SINGULAR!!

IT'S YOUR ANS MATE⤴️⤴️⤴️

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Answer 2

A PACK of cards was lying on the ground.

The rule is :
Was - singular
Were - plural.


In this sentence we are referring to a single pack of cards. Hence the answer is - was.
If the sentence was so - packs of cards ______ Lying On the ground. Then the answer would be were, since we are referring to more than one pack.