there is enough food for 15 days for 20 persons in residential school. how long does it last for 30 persons
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If food is enough for 20 persons for 15 days.
then one person can use it for (15 ×20) days.
Now, 30 peraon can use it for (15 ×20)/30 days.
=10 days
So, for 10 days it wil last for 30 persons.
Mark as brainleast plz.
then one person can use it for (15 ×20) days.
Now, 30 peraon can use it for (15 ×20)/30 days.
=10 days
So, for 10 days it wil last for 30 persons.
Mark as brainleast plz.
pushpakomalareddy:
no from class 7 its my friend
If 12 can graze in 10 days. then, 1 cow will graze it in (12 × 10) days. Now, 20 cows can graze it in (12 × 10)/20. So, 20 cows graze the same field in 6 days.
oooo
I think it fron direct and inversely proportional
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