Question

If 16 = 11, 25 = 12, 36 = 15, then 49 =

Answer 1

If If 16 = 11, 25 = 12, 36 = 15, then 49 =Then 49 = 20

Answer 2

the answer is 29... 
16=11 difference is 5
25=12 difference is 13
36=15 difference is 21
now,5, 13 & 21 .............. the difference between them is 8 
so , the 49 = 21 + 8 = 29 
therefore 49 = 29