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Find the missing number in the series : 2 , 6 , ? , 20 , 30 , 42

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CSIR CERI JSA Official Paper-I (Held On: 2022)
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  1. 12
  2. 16
  3. 18
  4. 24

Answer (Detailed Solution Below)

Option 1 : 12
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Detailed Solution

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The logic followed here is:

qImage67f751d62036b58118a8c10c

Hence, "Option 1" is the correct answer.

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-> The CSIR Junior Secretariat Assistant 2025 has been released for 9 vacancies.

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More Number Series Questions

Q1.Find the next number in the series. 6, 12, 18, 36, 54, 108, ?
Q2.Find the next number in the series. 24, 36, 60, 84, 132, 156, ?
Q3.Find the next number in the series. 675, 580, 471, 348, 211, ?
Q4.Find the next number in the series. 3, 4, 10, 33, 136, ?
Q5.Find out the wrong number in the given series: 5, 27, 61, 122, 213, 340, 509
Q6.Select the number that can come in place of the question mark (?) in the following series : 1, 1, 2, 3, 7, 22, ?
Q7.Find the next number in the series. 7, 6, 13, 38, 153, ?
Q8.Find the missing term in the series. 235, 190, 155, ?, 115, 110
Q9.Which of the following numbers is wrong in the given series? 256, 225, 186, 169, 144
Q10.Find the next number in the series. 152, 223, 300, 383, 472, ?

More Series Questions

Q1.Find the next number in the series. 6, 12, 18, 36, 54, 108, ?
Q2.Find the next number in the series. 24, 36, 60, 84, 132, 156, ?
Q3.Which one of the following images numbered as (1), (2), (3), (4) will be the next image for the given series?
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Q6.Find the next term in given series. RETIREMENT, TIREME, ETIREMEN, IREM, ? 
Q7.Find the next term in the given series. W29, P34, I39, B44, ?
Q8.Find out the wrong number in the given series: 5, 27, 61, 122, 213, 340, 509
Q9.Select the number that can come in place of the question mark (?) in the following series : 1, 1, 2, 3, 7, 22, ?
Q10.Select the option figure that will complete the series of question figure:
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More Logical Reasoning Questions

Q1.If it is possible to make only one four-letter meaningful word with the first, third, fourth, and eighth letter of the word ‘ABNORMALITY’, which could be the second letter of the word from the left end? If more than one such word can be formed, give ‘X’ as the answer. If no such word can be formed, give ‘Z’ as your answer.
Q2.How many boys are there between Q and T?
Q3.How many boys are lighter than U?
Q4.Find the next number in the series. 6, 12, 18, 36, 54, 108, ?
Q5.Find the next number in the series. 24, 36, 60, 84, 132, 156, ?
Q6.Find the odd image out in the given series.
Q7.How many squares are there in the given figure?
Q8.A man starts from point A and walks 5km towards East. He turns right and walks 4km; turns right again and walks 3km. He then takes another right and walks 6km. He walks 6km towards East; turns right and walks 2km and turns left and walks 1km to reach B. How far is A from B?
Q9.Replace the question mark with an option that follows the same logic applied in the first pair. 29 : 18 :: 39 : ?
Q10.A girl is facing North direction. If she turns 59 degrees in clockwise direction and 31 degrees in the same direction, which direction will she face now?
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