Find the missing number in the series: 60, 20 | vedclass

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Question

(A) The given series is $60, 20, ?, 15, 60, 12$.Let's analyze the pattern between consecutive terms:$60 	imes \frac{1}{3} = 20$$20 	imes 3 = 60$$60

Vedclass · Accepted Answer

$60$

Vedclass · Answer

(A) The given series is $60, 20, ?, 15, 60, 12$.Let's analyze the pattern between consecutive terms:$60 	imes \frac{1}{3} = 20$$20 	imes 3 = 60$$60 	imes \frac{1}{4} = 15$$15 	imes 4 = 60$$60 	imes \frac{1}{5} = 12$The pattern follows alternating operations: multiply by $\frac{1}{n}$ and then multiply by $n$,where $n$ increases by $1$ in each step $(n = 3, 4, 5, \dots)$.Therefore,the missing term is $20 	imes 3 = 60$.

$848$	$420$	$206$	$99$	$45.5$
$664$	$(A)$	$(B)$	$(C)$	$(D)$	$(E)$

$4$	$29$	$74$	$231$	$928$	$4641$
$3$	$(A)$	$(B)$	$(C)$	$(D)$	$(E)$

Find the missing number in the series: $60, 20, ?, 15, 60, 12$.

Similar Questions

Observe the following table and determine which number will come in place of $(D)$:
$848$ $420$ $206$ $99$ $45.5$
$664$ $(A)$ $(B)$ $(C)$ $(D)$ $(E)$

$4$ $29$ $74$ $231$ $928$ $4641$
$3$ $(A)$ $(B)$ $(C)$ $(D)$ $(E)$

What should come in place of $D$?

Find out the odd number from the given sequence: $5, 7, 16, 57, 244, 1245, 7506$.

$2, 3, 3, 5, 10, 13, ?, 43, 172, 177$

What will come in place of the question mark $(?)$ in the following number series?
$2, 3, 5, 8, 12, ?$

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