Odpowiedź :
1hPa = 100Pa
----
20kPa = 20 * 1000 Pa = 20 * 10 * 100 Pa = 200 hPa
0,35MPa = 0,35 * 1000000 Pa = 0,35 * 10000 * 100 Pa = 0,35 * 10000 * hPa = 3500hPa
----
20kPa = 20 * 1000 Pa = 20 * 10 * 100 Pa = 200 hPa
0,35MPa = 0,35 * 1000000 Pa = 0,35 * 10000 * 100 Pa = 0,35 * 10000 * hPa = 3500hPa