Series & Patterns
123 questions available
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Q81.What comes next in series? 25, 34, 52, 79, 114, ......?
Correct Answer: C
The differences are +9, +18, +27, +35. The differences are approximately multiples of 9 (+9, +18, +27, +36). Using a sequential difference of +44, the next term is 114 + 44 = 158.
Q82.Complete the series 15,30,45 ,.....?
Correct Answer: C
The series increases by 15 each time. The next term is 45 + 15 = 60.
Q83.Complete the series: 100, 64 , 36, 16, .....?
Correct Answer: C
The series consists of squares of decreasing even numbers: 10², 8², 6², 4². The next term is 2² = 4.
Q84.Complete the series: 5, 10, 15 , ......?
Correct Answer: A
The series consists of consecutive multiples of 5. The next term is 15 + 5 = 20.
Q85.Complete the series: 1, 2, 6, 12, 36, 72, 216, ........?
Correct Answer: C
The series alternates between multiplying by 2 and multiplying by 3. 216 * 2 = 432.
Q86.Complete the series: 17, 2, 51, 19, 3, .........?
Correct Answer: D
Odd positions are multiples of 17: 17*1=17, 17*3=51, 17*x. Even positions are 2, 19, 57 (+17, +38).
Q87.Complete the series: 95, 90, 83, 74, .....?
Correct Answer: C
Differences are -5, -7, -9 (successive odd numbers). The next difference is -11: 74 - 11 = 63.
Q88.Complete the series 66, 63, 57, 45, ......?
Correct Answer: C
Differences are -3, -6, -12. Each difference doubles. The next difference is -24: 45 - 24 = 21.
Q89.A confidential file must pass through three departments: Admin, Legal, and Audit. The file can only go to Audit after Legal but can visit Admin at any point. Which of the following is a valid sequence?
Correct Answer: C
The rule is that Audit must succeed Legal, and Admin can be anywhere. Sequence C is valid.
Q90.Which number should come next in the pattern: 37, 34, 31, 28, _____?
Correct Answer: C
The pattern is a constant subtraction of 3: 28 - 3 = 25.
Q91.What comes next in the series: 112, 100, 88, _____?
Correct Answer: C
The series decreases by 12 each time: 88 - 12 = 76.
Q92.Complete the letter series: D, F, H, J, __________.
Correct Answer: B
The letters skip one in the alphabet: D (+2) -> F (+2) -> H (+2) -> J (+2) -> L.
Q93.What comes next in the letter series: A, C, E, G?
Correct Answer: D
The pattern skips one letter each time: A (B) C (D) E (F) G (H) I.
Q94.Complete the series: 4, 20, 35, 49, 62, 74, ______?
Correct Answer: B
The differences are decreasing by 1: +16, +15, +14, +13, +12. The next addition is +11: 74 + 11 = 85.
Q95.Complete the series: 27, 24, 21, 18, _____?
Correct Answer: A
The series is a constant subtraction of 3: 18 - 3 = 15.
Q96.Complete the series: 115, 130, 145, 160, ______?
Correct Answer: B
The series increases by 15 each time: 160 + 15 = 175.
Q97.Complete the series: 20, 21, 23, 26, 30, 35, ______?
Correct Answer: C
The differences increase by 1 each time (+1, +2, +3, +4, +5). Next addition is +6: 35 + 6 = 41.
Q98.What letter comes next in the sequence: AZBBZCCCZDDD?
Correct Answer: A
The series consists of repeating letters separated by a single Z. The next letter following the four 'D's is Z.
Q99.What number should come next in the sequence: 8, 4, 2, 1, 1/2, 1/4, ______?
Correct Answer: D
Each term is obtained by dividing the previous term by 2. Thus, (1/4) ÷ 2 = 1/8.
Q100.Which letter precedes the letter which is 13th from D?
Correct Answer: A
Counting 13 letters forward from D(4) yields Q(17). The letter preceding Q is P(16).