Numerical Ability - Simplification & Approximation
Find the sum of the first 10 natural numbers.
Find the sum of the first 10 natural numbers.
easy Q13 of 15
Step-by-Step Solution
Step 1: Recall the formula
Sum of first n natural numbers = n(n+1)/2.Step 2: Compute for n = 10
(10 × 11) ÷ 2 = 55.Final Answer:
55 → Option B.Quick Check:
1 + 2 + … + 10 = 55 ✅
Quick Trick: Use n(n+1)/2 for natural numbers.
Common Mistakes:
- Forgetting to divide by 2.
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