Determine the atmospheric pressure at the top of the mountain if the pressure at its bottom is exactly 474 mm

Determine the atmospheric pressure at the top of the mountain if the pressure at its bottom is exactly 474 mm, and the height of the mountain is 3150 m.

For every 100 meters of rise, atmospheric pressure drops by 10 mm p. with.
Let’s make the proportion:
100 m – 10 mm r.s.
3150 m – x mm r.s.
Now we find the value of x:
x = (3150 * 10) / 100 = 31500/100 = 315 mm r.s. – how much the atmospheric pressure will drop when climbing to an altitude of 3150 m.
In order to find out the pressure at the top of the mountain, you need to subtract this difference from the pressure at the foot of the mountain:
474 mm h.s. – 315 mm r.s. = 159 mm r.s.
Answer: 159 mm r.s.