A) 20
B) 5
C) 4
D) 21
Correct Answer: B
Solution :
[b] \[225={{(15)}^{2}}\Rightarrow {{(8+7)}^{2}}\] \[49={{(7)}^{2}}\Rightarrow {{(3+4)}^{2}}\] \[121={{(11)}^{2}}\Rightarrow {{(6+5)}^{2}}\] So missing number is 5.You need to login to perform this action.
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