44 ?? or 45??
Positive real numbers are arranged in the form:
1 3 6 10 15 ...
2 5 9 14 ...
4 8 13 ...
7 12 ...
11 ...
Find the number of the line and column where the number 2002 stays.
EDITED: THANKS MRUNAL.
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9 Answers
°ღ•๓ÑÏ…Î
·2009-08-13 01:03:55
sorry 2 ask bt is it
1 3 6 10 15 ...
2 5 9 14 ...
4 8 13 ...
7 12 ...
11 ...
???
sorry if m sily bear plez :P
eureka123
·2009-08-13 01:13:02
yeah its like that mrunal [3]
just a try
if we rotate the triangle clockwise such that 1 is at the vertex of triangel and teh triangle extends downward indefintely
now donte the first term of nth row by tn
=> tn=n(n-1)/2 +1
am i on right path ??