questions no. 7 full solution
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Your full solution: "see attachment"
Note: there is mistake in your question , average income of 12 families is Rs 1800 not 18000. so correct it. then you will get the required Answer that is provided there.
_______________________________
Your full solution: "see attachment"
Note: there is mistake in your question , average income of 12 families is Rs 1800 not 18000. so correct it. then you will get the required Answer that is provided there.
_______________________________
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