Construction of graphs

Which one of the following was not known to the Hrappans ? (1) Construction of Wells (2) Construction of Pillars (3) Construction of Drains (4) Construction of Arches

Construction Of A Graph

Construction of Bar graphs on Graph paper

Construction of BAR graph on Y- axis

The pie-graph given below shows the breakup of the cost of construction of a house. If the total cost of construction is Rs. 15,00,000 answer the questions given below. What is the amount spent on labour ?

The pie-graph given below shows the breakup of the cost of construction of a house. If the total cost of construction is Rs. 15,00,000 answer the questions given below. The amount spent on Timber is how much of the amount spent on cement?