If the temperature at place 500m above sea level where the tourist started to climb the mountain was 20°c, what will be the temperature when they reached 1200m above the sea level?

To determine the temperature at 1200m above sea level, we need to consider the lapse rate. The lapse rate is the rate at which temperature decreases with an increase in altitude.

On average, the lapse rate is approximately 6.5°C per 1000m of altitude gained. Therefore, for every 1000m increase in altitude, the temperature decreases by 6.5°C.

In this case, the tourist started at 500m above sea level and climbed to 1200m above sea level, which is a gain of 1200m - 500m = 700m.

Using the lapse rate, we can calculate the temperature decrease:
Temperature decrease = (700m / 1000m) * 6.5°C = 4.55°C

Therefore, the temperature at 1200m above sea level would be:
20°C - 4.55°C = 15.45°C

Rounded to two decimal places, the temperature would be approximately 15.45°C.