A water pipe under Buckingham Palace is 59m long. A water pipe under the White House is 36m long.

What is the difference in the lengths of the two water pipes?

The difference between the lengths of the water pipes is 23 meters. Because you subtract 59 and 36 to get 23

The difference of lengths of the pipes can be solved by the equation 59 - 36. This equation yields the answer 23. The final answer would be 23 meters. I hope this fulfills your inquires about this problem.