Q. 1974.0( 4 Votes )

In a colony of 100 blocks of flats numbering 1 to 100, a school van stops at every sixth block while a school bus stops at every tenth block. On which stops will both of them stop if they start from the entrance of the colony?

Answer :

First stop at which both van and bus stops = LCM of 6 and 10 = 30


Hence, the stops at which both of them stop = 30, 30 + 30 = 60 and 30 + 30 + 30 = 90


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