Petr savings calculation

Peter spent a fifth of his savings on a compact disc and 25% on a nature book. He has CZK 550 left. How many crowns did Peter have in savings?

Final Answer:

x =  1000

Step-by-step explanation:


x-x/5-0.25x = 550

x-x/5-0.25·x = 550

2.75x = 2750


x = 2750/2.75 = 1000

x = 1000

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algebrabasic operations and conceptsnumbersUnits of physical quantitiesGrade of the word problem

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