A website Maths Puzzle Numerical Ability

what is the product of all numbers in the group in which 12 is present?

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A website Other Question

12,30,120,460,1368,??? Three taps A,B and C can fill a tank in 20,30 and 40
minutes respectively. All the taps are opened
simultaneously and after 5 minutes tap A was closed and
then after 6 minutes tab B was closed .At the moment a
leak developed which can empty the full tank in 60
minutes. What is the total time taken for the completely
full?