Birthday party

For her youngest son's birthday party, the mother bought 6 3/4 kg of hotdog and 5 1/3 dozens bread rolls. Hotdogs cost 160 per kilogram, and a dozen bread rolls cost 25. How much did she spend in all?

Correct answer:

x =  3640/3 = 1213 13

Step-by-step explanation:

x=(6+3/4) 160+(5+1/3) 25=33640=121331=1213.3333

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