Find the missing term in the series: 4.5, 16, | vedclass

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Question

(B) Observe the differences between consecutive terms in the series:$16 - 4.5 = 11.5$$33 - 25.5 = 7.5$$38.5 - 33 = 5.5$$42 - 38.5 = 3.5$$43.5 - 42 = 1

Vedclass · Accepted Answer

$25.5$

Vedclass · Answer

(B) Observe the differences between consecutive terms in the series:$16 - 4.5 = 11.5$$33 - 25.5 = 7.5$$38.5 - 33 = 5.5$$42 - 38.5 = 3.5$$43.5 - 42 = 1.5$The differences are decreasing by $2$ at each step: $11.5, 9.5, 7.5, 5.5, 3.5, 1.5$.Therefore,the missing term is $16 + 9.5 = 25.5$ and $25.5 + 7.5 = 33$.Thus,the missing term is $25.5$.

$2$	$4$	$9$	$20$	$43$	$90$
$3$	$(A)$	$(B)$	$(C)$	$(D)$	$(E)$

Find the missing term in the series: $4.5, 16, ?, 33, 38.5, 42, 43.5$

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