BPSC – Combined Competitive Examination · প্রশ্ন 80
Gaurav walks 20 m North, turns left and walks 40 m, turns left again and walks 20 m, then turns right and walks 20 m. How far is he from his starting point?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (C) 60 m
ব্যাখ্যা
North 20, West 40, South 20, West 20 → net 60 m West of the start.
- (A) ভুল
Wrong: the last 20 m West adds to the 40 m.
- (B) ভুল
Wrong: the westward total is 60 m.
- (C) সঠিক
Correct: N 20 and S 20 cancel; West 40 + 20 = 60 m.
- (D) ভুল
Wrong: does not match the moves.