Q142: Find the missing number in the series:
10, 7, 4, 1, ?
Answer: B
Each term decreases by 3. Next: 1 - 3 = -2.
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Q123: Find the missing number in the series:
1, 8, 27, 64, ?
Answer: C
Cubes of 1, 2, 3, 4 → next is 5³ = 125.
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Q113: Find the missing number in the series:
100, 96, 89, 79, ?
Answer: A
Differences: -4, -7, -10... Pattern is -3 more each step → next -13: 79-13=66.
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Q114: Find the missing number in the series:
0, 1, 1, 2, 3, 5, ?
Answer: B
Fibonacci series: next number is sum of previous two: 3+5=8.
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Q115: Find the missing number in the series:
0, 1, 1, 2, 3, 5, ?
Answer: C
Fibonacci series: next number is sum of previous two: 3+5=8.
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Q116: Find the missing number in the series:
121, 144, 169, ?
Answer: D
These are squares of 11, 12, 13... next: 14² = 196.
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Q117: Find the missing number in the series:
100, 96, 89, 79, ?
Answer: A
Differences: -4, -7, -10... Pattern is -3 more each step → next -13: 79-13=66.
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Q118: Find the missing number in the series:
0, 1, 1, 2, 3, 5, ?
Answer: B
Fibonacci series: next number is sum of previous two: 3+5=8.
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Q141: Find the missing number in the series:
2, 6, 18, 54, ?
Answer: A
Each number is multiplied by 3: 2×3=6, 6×3=18, etc. → 54×3 = 162.
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Q122: Find the missing number in the series:
2, 4, 6, 8, ?
Answer: B
Simple arithmetic progression: +2 each time. So next is 10.
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