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प्रश्न
400 men have provisions for 23 weeks. They are joined by 60 men. How long will the provisions last?
उत्तर
400 men have provisions for = 23 weeks
1 man will have provisions for = 23 x 400 weeks
and 400 + 60 = 460 men will have provisions for = `(23 xx 400)/460` weeks = 20 weeks
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