Happy hour prices Part-3(revised)

Algebra Level pending

A bar is offering greatly reduced prices on their draft beer during their happy hour. (See above image for menu prices)

If a group of friends decide that they want to drink a total of 2525 liters, how much would it cost them(minimum)?

Details and assumptions:

  • The bartender doesn't know mathematics, and he always gives:

1) $2\$2 extra for each 12\dfrac 12L drink you buy,

2) $4\$4 extra for each 11L drink you buy and,

3) $11\$11 extra for each 22L drink that you buy

  • For example, if you buy a 11L drink and pay him $50\$50, he will give you $44\$44 instead of $40\$40.

  • You can buy at most ten 12\dfrac 12L drink.

  • You can buy drinks in natural numbers, i.e. you can't buy 12.512.5 glasses of 22L drink.

  • You have just got $50\$50 bills with you.

Try solving the creator version and it's second part too! Also if you would like to have some fun read this!!!
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