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- Standard 13
- Reasoning
1.Analogy
medium
Choose the correct alternative for the given relation.
Given set : $(9,15,21)$
A
$(10,14,16)$
B
$(7,21,28)$
C
$(5,10,25)$
D
$(4,8,12)$
Solution
Second number is average of other two number
$\frac{9+21}{2}=\frac{30}{2}=15$
Similarly
$\frac{4+12}{2}=\frac{16}{2}=8$
Standard 13
Reasoning
