A) 42
B) 49
C) 50
D) 51
Correct Answer: C
Solution :
[c] \[n(A)=p,\,\,n(B)=q;\,\,n(A\times B)=pq=7\] so, possible values of p, q are 7, 1\[\Rightarrow {{p}^{2}}+{{q}^{2}}={{(7)}^{2}}+{{(1)}^{2}}=50.\]You need to login to perform this action.
You will be redirected in
3 sec