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(D) The relationship is based on the pattern $(x^3 + 1) : (x^3 + 1) 	imes 3 + 1$ or more simply $(n^3) : (n^3 + 3n^2 + 3n + 1)$ is not applicable her

Vedclass · Accepted Answer

$65$

Vedclass · Answer

(D) The relationship is based on the pattern $(x^3 + 1) : (x^3 + 1) 	imes 3 + 1$ or more simply $(n^3) : (n^3 + 3n^2 + 3n + 1)$ is not applicable here.Let us analyze the pattern: $8 = 2^3$ and $28 = 3^3 + 1$.Alternatively,$8 	imes 3 + 4 = 28$.Applying the same logic to $21$: $21 	imes 3 + 4 = 63 + 4 = 67$ (Not in options).Let us try another pattern: $8 = (2^3)$ and $28 = (3^3 + 1)$.For $21$,consider $21 = (3^2 + 12)$ or similar.Let us check the pattern: $8 = 2^3$ and $28 = 3^3 + 1$. The next number $21$ is $3^2 + 12$ (not consistent).Let us try: $8 = 2^3$ and $28 = 3^3 + 1$. If we take $21 = 4^2 + 5$,then $5^2 + 40 = 65$.Correct pattern: $8 = (2^3)$ and $28 = (3^3 + 1)$.Following the sequence $2, 3$ for the base,the next sequence is $4, 5$.So,$21$ is not fitting the base $n^3$. Let us re-evaluate: $8 = 2^3$ and $28 = 3^3 + 1$. $21$ is $4^2 + 5$. The next is $5^2 + 40 = 65$.Alternatively,$8 	imes 3.5 = 28$. Then $21 	imes 3.5 = 73.5$.Looking at $8 = 2^3$ and $28 = 3^3 + 1$,the relation is $n^3$ and $(n+1)^3 + 1$. For $21$,$21 = 4^2 + 5$. The pattern is $n^2 + 4$ and $(n+1)^2 + 40$. Actually,$8 = 2^3$ and $28 = 3^3 + 1$. $21 = 4^2 + 5$. The most logical answer is $65$ based on $4^3 + 1 = 65$.

$I$	$(A)$ Flower	$(B)$ Tree	$(C)$ Branches	$(D)$ Trunk
$II$	$(P)$ Foundation	$(Q)$ Walls	$(R)$ Floor	$(S)$ Platform

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$8 : 28 :: 21 : ?$

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Choose the correct alternative for the given relation.$8 : 28 :: 21 : ?$

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