LCM Tough Questions Flashcards
1
Q
Victor has some cards.
He arranges them into groups of 4 then rearranges them into groups of 7.
On both occasions he got a remainder of 3 cards.
What is the least number of cards Victor could have?
A
Calculate the LCM then add the remainder.
4= 4, 8, 12,16,20,24, 28
7=7,14,21,28
Common number is 28
LCM=28+3
Answer= 31
