Question

please help me
I will brainless​

Answer 1

Answer:

We have to find minimum distance (i.e., LCM) covered by steps

40=2^3\times5 \\ 42=2\times3\times7 \\ 45=3^2\times 5\\ LCM(40, 42, 45)=2^3\times3^2\times5\times7=2520 \ cm

So, the minimum distance that each should walk is 2520 cm.

i hope it's helpful

Answer 2

Answer:

i think is 20cm

Step-by-step explanation:

cause thats the smallest distance