Leo

• May 26th, 2005

 

365

LG

• Aug 23rd, 2005

 

365 is the correct answer 
5 25 61 113 181 265 ---> 365 
20 36 52 68 84 --> 100 
16 16 16 16 -> 16

Visitor

• Jan 30th, 2007

 

365Difference between two consecutive numbers is increasing by 16. 25 - 5 = 2061 - 25 = 36 (which is equal to 20 + 16)113 - 61 = 52 (which is equal to 36 + 16)181 - 113 = 68 (which is equal to 52 + 16)265 - 181 = 84 (which is equal to 68 +16)Thus the next number must be 100 (84 + 16 = 100) more than 265, that is 265 +100 = 365

jene2in

 Profile Answers by jene2in 

• May 31st, 2008

 

4(1) + 1    = 5,         >>>>    the product term is calculated as 1(1+0) = 1,
4(6) + 1    = 25,       >>>>                                                         2(2+1) = 6,
4(15) + 1  = 61,       >>>>                                                         3(3+2) = 15,
4(28) + 1  = 113      >>>>                                                         4(4+3) = 28,
4(45) + 1  = 181      >>>>                                                         5(5+4) = 45,
4(66) + 1  = 265      >>>>                                                         6(6+5) = 66,
4(91) + 1  = 365      >>>>                                                         7(7+6) = 91

manugautam25

 Profile Answers by manugautam25 

• Jul 1st, 2008

 

ANother answer is 425.

1*1  +  2*2   =  5
3*3  +  4*4   =  25
5*5  +  6*6   =   61
7*7  +  8*8   =   113
9*9  + 10*10 =  181
11*11 + 12*12 = 265
13*13  +  14*14  = 425  (Answer)

Dhairyashil

 Profile Answers by Dhairyashil 

• Jul 5th, 2008

 

the ans is 365....
25-5=20
61-25=36
113-61=52
181-113=68
265-181=84
x-265=100
: x=365

Arunjhakhar

 Profile Answers by Arunjhakhar 

• Jul 13th, 2008

 

answer 365

Nitin

• Sep 22nd, 2014

 

The series is:
5^2 + 6^2 = 61
7^2 + 8^2 = 113
9^2 + 10^2 = 181
and so on.