# Birthday party

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

Result

x =  1213.333

#### Solution:

$x=(6+3/4) \cdot \ 160 + (5+1/3) \cdot \ 25=\dfrac{ 3640 }{ 3 } \doteq 1213.3333 \doteq 1213.333$

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