A postman was returning to the post office which was in front of him to the North. When the post office was 100 m away from him, he turn to left and went 50 m to deliver the last letter at the Shanti Villa. He, then went in the same direction for 40 m, turned to right and went 100 m. How many metres was from the post office ?
Answer & Explanation
Required distance = ST = (40 + 50) = 90m