Observe the following arrays: (1), (3,5), (7,9,11), (13,15,17,19) Question 2005 in group () A. 44B. 45C. 46d. Not sure
2005 in (1), (2,3), (4,5,6) If the number of groups is n, then ∵ n (n − 1) 2 ∵ 1003 ∵ n (n + 1) 2 ∵ n = 45 is in group 45
If it is arranged in the order of (1) (3,5) (7,9,11) (13,15,17,19)... How many groups will 2005 be in?
Why?
Within group 45
How many hectares and square meters is five and one twentieth of a hectare
5 1 / 20 ha = 5.05 ha = 50500 m2