A boy rode his bicycle northward, then turned left and rode 1 km and again turned left and rode 2 km. He found himself 1 km west of his starting point. How far did he ride northward initially?
4 km
2 km
3 km
5 km
1 km
Possible distance covered initially = 2 Km
0, 2, 8, 14, ?, 34
1, 4, 2, 8, 6, 24, 22, 88, ?
1, 4, 9, 16, 25, ?
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