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Find the least number of apples so that heaps of 12,15 and 20 apples can be made with no apples left.
Given :
Apples have to be arranged in the heaps of 12, 15, and 20.
To do :
We have to find the least number of apples that can be arranged as the heaps of 12, 15, 20.
Solution :
The least common multiple of 12, 15, and 20 is the required least number of apple.
Multiples of 12 - 12, 24, 36, 48, 60, 72, 84, 96,.....
Multiples of 15 - 15, 30, 45, 60, 75, 90, 105,....
Multiples of 20 - 20, 40, 60, 80, 100, .......
The least common multiple of 12, 15, 20 is 60.
Therefore, the required least number of apple is 60.
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