Question

Before Flood we measure that the water 40feet down from the bridge and we saw that after flood the water grows 15 feet above from the water.So how many feet is there in the middle water??Maths

Answer 1

Answer:

Methods of Control. In many countries, rivers prone to floods are often carefully managed. Defences such as levees, bunds, reservoirs, and weirs are used to prevent rivers from bursting their banks. When these defences fail, emergency measures such as sandbags or portable inflatable tubes are used.