Success Khan Logo

Number System Practice Set

निर्देश ( प्रश्न 1 से 10 तक ) – निचे लिखे प्रश्न में एक संख्या गलत या अनुपयुक्त है । वह संख्या कौन सी है ?
Instructions (Questions 1 to 10) – A number is wrong or inappropriate in the following questions. What is that number?

1. 112   114   120   124   132   142   154
A. 142
B. 132
C. 124
D. 120

Answer: Option D
Explanation: 112 → +2 → 114 → +4120+6 → 124 → +8 → 132 → +10 → 142 → +12 → 154

View / Hide Answer

2. 1     3     8     19     42     88     184
A. 3
B. 8
C. 88
D. 42

Answer: Option C
Explanation:1 → ×2 +1 → 3 → ×2 +2 → 8 → ×2 +3 → 19 → ×2 +4 → 42 → ×2 +588×2 +6 → 184

View / Hide Answer

3. 2     3     9     19     36     62     99
A. 2
B. 3
C. 9
D. 19

Answer: Option B
Explanation:2 → +23+5 → 9 → +10 → 19 → +17 → 36 → +26 → 62 → +37 → 99

View / Hide Answer




4. 5     13     17     25     29     36     41
A. 17
B. 25
C. 29
D. 36

Answer: Option D
Explanation:5 → +8 → 13 → +4 → 17 → +8 → 25 → +4 → 29 → +836+4 → 41

View / Hide Answer

5. 3     4.5     9     22.5     67.5     270     945
A. 270
B. 67.5
C. 22.5
D. 9

Answer: Option A
Explanation:3 → ×1.5 → 4.5 → ×2 → 9 → ×2.5 → 22.5 → ×3 → 67.5 → ×3.5270×4 → 945

View / Hide Answer

6. 8544     1420     280     44     18     8     1
A. 1420
B. 280
C. 44
D. 18

Answer: Option C
Explanation:8544 → ÷6 -4 → 1420 → ÷5 -4 → 280 → ÷4 -444÷3 -4 → 18 → ÷2 -4 → 8 → ÷1 -4 → 1

View / Hide Answer


 







Explore