A) 40
B) 44
C) 80
D) 88
Correct Answer: A
Solution :
Let the two numbers be A and B. Then, \[A+B=22\]and \[{{A}^{2}}+{{B}^{2}}=404\] we know that, \[{{(A+B)}^{2}}={{A}^{2}}+{{B}^{2}}+2AB\] \[\Rightarrow \] \[{{(22)}^{2}}=404+2AB\] \[\Rightarrow \] \[484=404+2AB\] \[\Rightarrow \] \[2\,\,AB=80\] \[AB=40\] The product of the two numbers = 40You need to login to perform this action.
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