60 students of a hostel had provisions for 40 days. If 20 more students were admitted, how long would the provision last?
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Answer:
30 days
Step-by-step explanation:
students S : 60
days D : 40
and since....
S ∞ 1/D
S1 D1 = S2 D1
but ...
S2 = 60 + 20 = 80
now....
60 × 40 = 80 × D2
hence....
D2 = 30
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