Grandmother - money

On a school trip, Šárka received pocket money from her grandmother for small expenses. On the first day, she spent 20% of it and was left with 320 CZK. Calculate the amount of Šárka's pocket money.

Final Answer:

x =  400

Step-by-step explanation:

r=20%=10020=51=0.2  xr x=320 x0.2 x=320  0.8x=320  x=0.8320=400  x=400



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