Jawahar Navodaya Vidyalaya Selection Test (JNVST)
Your gateway to quality education at Jawahar Navodaya Vidyalaya
Calculation Skills: Performing calculations based on data
🚀 Calculation skills are essential for solving problems that involve numbers and data. In the Jawahar Navodaya Vidyalaya Selection Test (JNVST), you may encounter questions that require you to perform calculations based on data presented in charts, tables, or other visual formats. Understanding how to interpret this data and perform accurate calculations is crucial for success. Let's explore this concept with examples from everyday life in India.
Examples💡
Example 1: Imagine you are at a local market, and you want to buy 3 kg of apples. If the price per kg is ₹50, how much will you spend? To find the total cost, multiply the price per kg by the number of kgs: Total Cost = 3 kg × ₹50/kg = ₹150.
Example 2: You are planning a small party and need to buy 5 litres of juice. If each litre costs ₹20, what is the total cost? Total Cost = 5 litres × ₹20/litre = ₹100.
Example 3: A farmer sells vegetables at a market. He sells 10 kg of tomatoes at ₹30 per kg and 5 kg of potatoes at ₹20 per kg. What is his total earning? Total Earning = (10 kg × ₹30/kg) + (5 kg × ₹20/kg) = ₹300 + ₹100 = ₹400.
Common Mistakes to Avoid⚠️
- Mistake: Forgetting to multiply the price by the quantity. Correction: Always remember to multiply the unit price by the quantity to find the total cost.
- Mistake: Misreading the units (e.g., confusing kg with litres). Correction: Pay close attention to the units given in the problem and ensure consistency in calculations.
- Mistake: Incorrectly adding or multiplying numbers. Correction: Double-check your calculations to ensure accuracy.