self Maths Puzzle

What is the remainder when1044*1047*1050*1053 is divided by 33.

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self Other Question

a person cheats 5% on the purchase price of a product and also cheats 5% on the sale price. find the gain/loss percentage two stations A and B are 100 km apart. Two cars start from point A and B at speed of 48 kmph and 64 kmph respectively and return back to their original position . what is the time gap between their second meet?