The bar graph given below represents approximate length (in kilometres) of some National Highways in India. Study the bar graph and answer the following questions:(a) Which National Highway (N.H.) is the longest among the above? (b) Which National Highway is the shortest among the above? (c) What is the length of National Highway 9? (d) Length of which National Highway is about three times the National Highway10?
Scale: 1 unit ;ength = 200km