King's birthday

To celebrate the king's birthday workers fire 1/5 all purchased rockets. To celebrate the Queen's birthday fire 1/6 of the remaining rockets and to celebrate the birthday of king's son remaining 15,000 rockets. How many rockets they purchased?

Correct result:

x =  22500

Solution:


x-x/5-1/6•(x-x/5)=15000

20x = 450000

x = 22500

Our simple equation calculator calculates it.



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