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- Standard 13
- Reasoning
1.Analogy
medium
Choose the correct alternative for the given relation.
Given set : $(21,51,15)$
A
$(5,10,5)$
B
$(13,18,5)$
C
$(17,27,5)$
D
$(20,15,25)$
Solution
The relation followed is
($3rd$ term $\times 2$ ) $+$ ist term $= 2nd$ term.
Also, $35 \times 2+21=91$
The same relation is followed by $D$.
Hence, option $D$ is correct.
Standard 13
Reasoning
