Question

Planets A, B and C orbit a certain star once every 3, 7, and 18 months respectively. If the three planets are now in the same straight line, what is the smallest number of months that must pass before they line up again?

Answer 1

so can you help me

Answer 2

hello

Answer 3

i will give you a medal

Answer 4

saseal plese respond

Answer 5

find the lowest common multiple between the 3 numbers

Answer 6

it is 126 but that is not on my answer choice

Answer 7

then its not the lowest common multiple

Answer 8

it is i just did the math

Answer 9

ok whats your choice?

Answer 10

a) 20 1/5 b)21 c)20 5/25 D)22

Answer 11

weird

Answer 12

i know its ok i will ask my teacher tomorrow thanks for trying tough

Answer 13

yw

Answer 14

thats why mcq sucks