A) 19
B) 23
C) 25
D) 31
Correct Answer: D
Solution :
We have: \[\sqrt{36}+\sqrt{64}+\sqrt{25}+\sqrt{49}=26;\sqrt{9}+\sqrt{25}+\sqrt{16}+\sqrt{81}=21\] So missing number \[=\sqrt{25}+\sqrt{144}+\sqrt{36}+\sqrt{64}=(5+12+6+8)=31\]You need to login to perform this action.
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