A 13-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 10 fe
et from the base of the building. How high up the wall does the ladder reach?
1 answer:
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Price per hour of first case :
( Here, a is number of hours )
Price per hour of second case :
( Here, b is number of hours )
Let, after x hours both company charges the same.
Hence, this is the required solution.