For the following questions answer them individually
If D is the depth of scour below original bed, then the width of bunching apronis generally taken as
When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment to be given is
The population of a town as per census records were 2,00,000; 2,10,000 and 2,30,000 for the year 1981, 1991 and 2001 respectively. Find the population of the town in the year 2011 using arithmetic mean method. The answer is