Question

~~The maximum grade allowed between two stations in a rapid-transit rail system is 3.5%. Between station A and station B, which are
290
ft apart, the tracks rise
712
ft. What is the grade of the tracks between these two stations? Round the answer to the nearest tenth of a percent. Does this grade meet the rapid-transit rail standards?

Answer 1

The grade is impossibly steep, and the stations are too close together (platform length). Perhaps 290 feet should be 290 furlongs or miles? 1 furlong=660 feet. 290 furlongs is 191,400 ft. Grade=712/191400=0.00372 or 0.372% well within the statutory 3.5%.

Answer 2

The maximum grade allowed between two stations in a​ rapid-transit rail system is​ 3.5%. Between station A and station​ B, which are

270270

ft​ apart, the tracks rise

8 and one half812

ft. What is the grade of the tracks between these two​ stations? Round the answer to the nearest tenth of a percent. Does this grade meet the​ rapid-transit rail​ standards?

The grade of the tracks between station A and station B is

​%. ?