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(c) sale of 50 pens.22. The ground water level in a locality was 25 feet in a year, for the next two year itdropped by 2 feet and 3 feet. Find the total drop of water level in 2 years. Also findwhat was the level after 2 years. The resident took a note of this alarming situationand started rain water harvesting. The water level reached at the level of 30 feet. Findthe increase in water level in that year. What concern of the people of that area isdepicted. |
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