Step 1: प्रतिशत को भिन्न में बदलें.
31%=31×1001=3001
Step 2: दिए गए मान से गुणा करें.
3001×1800second
Step 3: गणना करें.
3001×1800second=3001800second=6second
इसलिए, 31% of 1800 second है 6 second.
The final answer is 6second.
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