Answer:
They will see each other at home in 15 days.
Step-by-step explanation:
The LCM of 5 and 3 is 15.
What is LCM?
The Least Common Multiple (LCM) is the smallest common (same) multiple of two numbers. A multiple is the result of multiplying a number with another number except zero.
How to find the LCM?
Find the prime factors of each number
3 = 1, 3
5 = 1, 5
The prime factors of 3 and 5 are 1, 3, and 5.
Multiply the prime factors
1 x 3 x 5 = 15
The LCM of 3 and 5 is 15.
Final answer: They will see each other at home in 15 days.
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