Option 1 : 0

Given:

20 × 7 × 18 × 37 × 22

Calculation:

20 × 7 × 18 × 37 × 22

Taking unit digits

⇒ 0 × 7 × 8 × 7 × 2

⇒ 0

**∴ The unit digit of 20 × 7 × 18 × 37 × 22 is 0.**

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