Jawahar Navodaya Vidyalaya Selection Test (JNVST)
Your gateway to quality education at Jawahar Navodaya Vidyalaya
Logical Sequences: Understanding and completing logical sequences
🚀 Logical sequences are patterns or arrangements of numbers, letters, or objects that follow a specific rule or set of rules. Understanding these sequences is crucial for solving problems in mathematics and everyday life. In the context of the JNVST, logical sequences often involve identifying the rule governing the sequence and using it to predict the next item or complete the sequence. For example, if you notice that a sequence of numbers is increasing by 2 each time, you can predict the next number by adding 2 to the last number in the sequence.
Examples💡
Example 1: Consider the sequence 2, 4, 6, 8, ... . Here, each number is increasing by 2. To find the next number, add 2 to the last number: 8 + 2 = 10. So, the next number is 10.
Example 2: Look at the sequence A, C, E, G, ... . This sequence skips one letter in the English alphabet each time. After G, the next letter, skipping one, is I. So, the next letter is I.
Example 3: Imagine a sequence of shapes: circle, square, circle, square, ... . The pattern alternates between a circle and a square. Following this pattern, the next shape after square is a circle.
Common Mistakes to Avoid⚠️
- Mistake 1: Not identifying the correct pattern or rule. To avoid this, carefully observe the differences or similarities between items in the sequence.
- Mistake 2: Assuming a pattern too quickly without checking all items. Always verify the rule with all given items before predicting the next one.
- Mistake 3: Confusing arithmetic sequences with geometric sequences. Remember, arithmetic sequences have a constant difference, while geometric sequences have a constant ratio.