Jawahar Navodaya Vidyalaya Selection Test (JNVST)
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Cross-Checking: Verifying answers during the exam through alternative methods
🚀 Cross-checking is a valuable skill that helps you verify your answers during an exam by using alternative methods. This ensures that your answers are correct and boosts your confidence. Imagine you are at a local market in India, and you want to make sure you have received the correct change after buying some vegetables. You can count the money in different ways to verify the total. Similarly, in exams, you can use different methods to check your answers.
Examples💡
Example 1: Suppose you solved a math problem using addition. To cross-check, you can use subtraction. If you added 150 rupees and 200 rupees to get 350 rupees, you can subtract 200 from 350 to see if you get 150.
Example 2: If you calculated the area of a rectangle by multiplying length and width, you can cross-check by dividing the area by one side to see if you get the other side. For instance, if the area is 20 square meters and the length is 5 meters, dividing 20 by 5 should give you the width, which is 4 meters.
Example 3: When you solve a problem involving averages, you can cross-check by multiplying the average by the number of items to see if you get the total sum. For example, if the average price of 5 items is 10 rupees, the total should be 50 rupees (5 items x 10 rupees).
Common Mistakes to Avoid⚠️
- Mistake 1: Not using a different method for cross-checking. Always try to use a different approach to verify your answer.
- Mistake 2: Rushing through the cross-checking process. Take your time to ensure accuracy.
- Mistake 3: Ignoring units of measurement. Always pay attention to units like rupees, meters, or liters when cross-checking.