Lookout tower
How high is the lookout tower? If each step was 3 cm lower, 60 more were on the lookout tower. If it were 3 cm higher again, it would be 40 less than it is now.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- quadratic equation
- equation
- system of equations
- expression of a variable from the formula
- basic functions
- reason
- numbers
- natural numbers
Units of physical quantities:
Grade of the word problem:
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