Multiple choice general knowledge

Which area is greater

  1. 5.221e+20 barn

  2. 516 00 rood

  3. 206400000 perch

  4. 1579000 tsubo

  5. 5265 tan

  6. 130500 ngan
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Convert all areas to square meters. A: 5.221 × 10^20 barn = 5.221 × 10^20 × 10^-28 m² = 5.221 × 10^-8 m². B: 51,600 rood = 51,600 × 1011.71 m² = 52,204,236 m². C: 206,400,000 perch = 206.4 million × 25.29 m² = 5,219,856,000 m². D: 1,579,000 tsubo = 1,579,000 × 3.306 m² = 5,220,474 m². E: 5,265 tan = 5,265 × 10000 m²? Actually tan varies, but assuming Vietnamese tả (5,000 m²), that's 26,325,000 m². F: 130,500 ngan = 130,500 × 400 m² = 52,200,000 m². Option C (206.4 million perch) is clearly the largest at over 5 billion square meters.

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