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IB ACIO Grade II Previous Paper 9 (Held on: 19 Feb 2021 Shift 2)

- \(\sqrt 9 - \sqrt 7 \)
- \(\sqrt 6 - \sqrt 4 \)
- \(\sqrt {28} - 5\)
- \(\sqrt {18} - 4\)

Option 4 : \(\sqrt {18} - 4\)

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IB ACIO Grade-II: Full Mock Test

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**Calculation:**

√9 - √7 = 3 - 2.64 = 0.36

√6 - √4 = 2.44 - 2 = 0.44

√28 - 5 = 5.29 - 5 = 0.29

√18 - 4 = 4.24 - 4 = 0.24

**∴ √18 - 4 is the smallest.**

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