the expenditure on roads, school and water supply are in the ratio7:15:2.if the expenditure on roads is 2,800, find the expenditure on schools and water supply.
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expenditure ratio of
roads:school:water=7:15:2
total ratios=24
road expenditure for 7 parts =2800
1 part =400
expenditure on schools= 15 parts=15X400=6000
expenditure on water=2 parts=2X400=800
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