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1 vote
HELP ASAP PLEASE!!!!!

HELP ASAP PLEASE!!!!!-example-1
User Nowdeen
by
7.6k points

1 Answer

7 votes

Explanation:

LCM of 18, 30 and 42

= 2×3×3×5×7

=630 option B

After 630secs the planets will be aligned again

User Salvatore Ucchino
by
8.3k points