Question

A child is looking for his father. He went 90 metres in the East before turning to his right. He went 20 metres before turning to his right again to look for his father. He saw his uncle's place 30 metres from this point. His father was not there. From here he went 100 metres to the North before turning to his father's house. How far did the son reach from the starting point?

• A. 80 metres
• B. 100 metres
• C. 140 metres
• D. 200 metres
• E. 90 metres

Hint:

Break movement into horizontal and vertical components.

Answer 1

The Correct Option is B

Path: East → 90 South → 20 West → 30 North → 100 Net distance from start: \[ 100 \text{ metres} \]