SSC Steno Grade C and D 22 Dec 2020 Shift 2 Paper

Stepping outside her school, Katrina walked 40 m towards South to reach an ice-cream parlor, From there, she took a left turn and walked 15 m to reach a bus stop. She then took a left turn and walked for another 30 m to reach the central park. What is the approximate shortest distance between the ice-cream parlor and the central park?