Question

Find the least number of marbles so that the piles of 12, 15 and 20 marbles can be made.

Answer 1

$The \: least \: number \:of \: marbles \:so \\that \:the \:piles \:of \: 12,15\:and \:20 \:marbles can \\be \:made = L.C.M \:of \: 12,15 \:and \:20$

/***

2| 12,15,20

__________

2| 6,15,10

__________

3| 3,15,5

__________

*** 1,5,1

_____________**/

$= 2 \times 2 \times 3 \times 5$

$= 60$

Therefore.,

$\red{ Required \:number }\green { = 60}$

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