A child went 90 m in the East to look for his father, then he turned right and went 20 m. After this he turned right and after going 30 m he reached to his uncle's house. His father was not there. From there he went 100 m to his north and met his father. How far did he meet his father from the starting point?

A. 80 m

B. 100 m

C. 140 m

D. 260 m

Answer: Option B

Solution(By Examveda Team)

Required Distance
= AE
= √(AG² + EG²)
= √{(90 - 30)² + (100 - 20)²}
= √{(60)² + (80)²}
= √(3600 + 6400)
= √10000
= 100 m