Numerical Ability - Simplification & Approximation
Simplify: (50% of 60 + √324) ÷ (1/3 of 18)
Simplify: (50% of 60 + √324) ÷ (1/3 of 18)
medium Q15 of 15
Step-by-Step Solution
Step 1: Compute 50% of 60
50% = half, so 30.Step 2: Evaluate √324
√324 = 18.Step 3: Form numerator
30 + 18 = 48.Step 4: Compute denominator
(1/3) × 18 = 6.Step 5: Divide
48 ÷ 6 = 8.Final Answer:
8 → Option A.Quick Check:
8 × 6 = 48 (correct) ✅
Quick Trick: Extract simple percentages and use familiar roots to stay fast.
Common Mistakes:
- Mis-evaluating √324 or miscomputing fraction part.
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