एक पंक्ति में, 25 पेड़ एक दूसरे से समान दूरी पर लगाए गए हैं। पहले और 25वें पेड़ के बीच की दूरी 30 मीटर है। तीसरे और 15वें पेड़ के बीच की दूरी कितनी है?

Five people, A, B, C, D and E, are sitting in a row, facing north. Only two people sit between A and B. B sits between D and E. E sits second to the left of A. Who sits at the extreme left end of the row?

Seven people G, J, K, F, R, V, and N are sitting in a straight line facing north. V sits third to the right of R. J sits third to the right of V. N is an immediate neighbor of G. F is an immediate neighbor of both J and K. G is not an immediate neighbor of V. Only two people sit between F and N. Who sits to the immediate right of V?