a lady's age is between 50 and 70.each of her sons has many sons as his
brothers. the sum of the sons and grandsons in the lady's age. what is her age?	Choose the correct option:  A) 61  B) 62  C) 63  D) 64  E) 65
Let assume Lady has 'N' children.   Each child have (N-1) children. (Grandsons for that lady).   S0, total children = N+(N*(N-1))   By, putting N=6, we get   6+(6*(6-1))= 
<gadget id="calculator">  6+(6*(6-1))</gadget>
<output>36</output>
36 childrens.   By, Putting N=7, we get   7+(7*(7-1))= 
<gadget id="calculator">  7+(7*(7-1))</gadget>
<output>49</output>
49 childrens.   By, putting N=8, we get   8+(8*(8-1))= 
<gadget id="calculator">  8+(8*(8-1))</gadget>
<output>64</output>
64 childrens.   By, putting N=9, we get   9+(9*(9-1))= 
<gadget id="calculator">  9+(9*(9-1))</gadget>
<output>81</output>
81 childrens.   Here, Lady's age between 50 to 70.   So, answer is 64.   ANSWER:64
<result>D</result>
a lady's age is between 50 and 70.each of her sons has many sons as his
brothers. the sum of the sons and grandsons in the lady's age. what is her age?