Rubina could get equal number of Rs. 55, Rs. 85 and Rs. 105 tickets for a movie. She spends Rs. 2940 for all the tickets. How many of each did she buy?
Let x be the number of tickets bought by tickets.
Total money spent = 55x + 85x + 105x
245x = 2940
x = $$\frac{2940}{245}$$ = 12
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