11. In flood victim relief fund each house of a locality of a town donated in rupees equal to half the number of houses
total donation is Rs. 6272, find the number of houses. How many rupees each house contributed ?
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Step-by-step explanation:
Let the number of houses be a
so each house contribution=a/2
Given, axa/2=6272
a²=12544
a=112.
So number of houses=112 .
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