Question:
If the first lap takes 50 seconds, the second one takes 20% more, or $3461_w242_h14.png$ seconds, where T1 and T2 are the times required for the first and second laps, respectively. Similarly, $9611_w242_h14.png$ seconds, the time required for the third lap. Add the times for the three laps: 50 + 60 + 72 = 182.