Numerical Ability - Simplification & Approximation
Find the sum of the first 8 odd numbers.
Find the sum of the first 8 odd numbers.
easy Q1 of 15
Step-by-Step Solution
Step 1: Recall the formula:
Sum of first n odd numbers = n².Step 2: Compute for n = 8:
8² = 64.Final Answer:
64 → Option A.Quick Check:
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = 64 ✅
Quick Trick: Sum of n odd numbers = n².
Common Mistakes:
- Miscounting terms or adding manually and making arithmetic errors.
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