Numerical Ability - Simplification & Approximation
A value increases from 400 to 500. What is the percentage increase?
A value increases from 400 to 500. What is the percentage increase?
medium Q8 of 15
Step-by-Step Solution
Step 1: Find the increase amount
Increase = 500 − 400 = 100.Step 2: Compute percentage increase
Percentage increase = (Increase ÷ Original) × 100 = (100 ÷ 400) × 100 = 25%.Final Answer:
25% → Option D.Quick Check:
25% of 400 = 100 → 400 + 100 = 500 ✅
Quick Trick: Use (difference ÷ original) × 100 for percent change.
Common Mistakes:
- Dividing by new value instead of original.
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