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Intelligence And Critical Reasoning | Alphabetical And Numerical Series

Q. No. 7:	Find the next term in the series 198, 194, 185, 169, (..?..).
A :	136
B :	144
C :	148
D :	132

Solution Answer: B 198 - 2² = 194 194 - 3² = 185 185 - 4² = 169 169 - 5² = 144.

Q. No. 8:	Find the next term in the series 125, 80, 45, 20, (..?..)
A :	8
B :	12
C :	10
D :	5

Solution Answer: D 125 - 45 = 80 80 - 35 = 45 45 - 25 = 20 20 - 15 =5.

Q. No. 9:	What is the missing element in the sequence : 625, 5, 125, 25, 25, (..?..), 5
A :	125
B :	5
C :	25
D :	625

Solution Answer: A 625(1st element) divided by 5 ---------> Third element(125) divided by 5 ------> Fifth element and so on... Same as , 2 element * 5 = 4th element; 4 element * 5 = 6th element. Hence, 25* 5 = 125.

Q. No. 10:	Find the next triplet of alphabets in the following series : ABD, DGK, HMS, MTB, SBL, (..?..).
A :	ZKU
B :	ZKW
C :	XKW
D :	ZAB

Solution Answer: B The first letter of the triplets moves 3,4,5,6,7....steps forward. The second letter of the triplets moves 5,6,7,8,9...steps forward. The third letter of the triplets moves 7,8,9,10,.....steps forward. Hence, the next triplet of alphabet is ZKW.

Q. No. 11:	What is the next term in the series 198, 202, 211, 227, (..?..)
A :	251
B :	256
C :	263
D :	252

Solution Answer: D 198 + 2² = 202 202 + 3² = 211 211 + 4² = 227 227 + 5² = 252

Q. No. 12:	What is the missing element in the sequence represented by the question mark ? 2, 12, 30, 56, (..?..), 132, 182.
A :	116
B :	76
C :	90
D :	86

Solution Answer: C 2 = (1² +1) 12 = (3² +3) 30 = (5² +5) 56 = (7² +7) 90 = (9² +9) 132 = (11² + 11)......And so on.

125 ‹‹12 3 4 ›› ... 21

Alphabetical And Numerical Series