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प्रश्न
In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?
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उत्तर
In a hostel of 50 girls, food are available = 40 days
For 1 girl, food provisions = 50 × 40 = 2000 days
Now, for (50 + 30) girls i.e. 80 girls, the food provision = `2000/80`
= `200/8`
= 25 days
The food provisions will last for 25 days, if 30 more girls join.
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