Chart 1 shows the distribution of 12 million tonnes of crude oil transported through different modes over a specific period of time. Chart 2 shows the distribution of the cost of transporting this crude oil. The total cost was Rs. 30 million.
Question: 1
The cost in rupees per tonne of oil moved by rail and road happens to be roughly:
Show Hint
Always find tonnes and cost separately, then divide for cost per tonne.
From Chart 1: Rail = 9% of 12 million tonnes = 1.08 million tonnes.
From Chart 2: Rail cost share = 12% of Rs. 30 million = Rs. 3.6 million.
Cost per tonne = 3.6 million / 1.08 million = Rs. 3.33 (rail).
Road = 22% of 12 million = 2.64 million tonnes.
Road cost share = 6% of Rs. 30 million = Rs. 1.8 million.
Cost per tonne = 1.8 million / 2.64 million ≈ Rs. 0.68.
Combined ≈ Rs. 4.01, close to Rs. 4.5.
Was this answer helpful?
0
0
Question: 2
From the charts given, it appears that the cheapest mode of transport is:
Show Hint
Cheapest = smallest cost per tonne, not the lowest total cost share.
Road carries 22% of total volume (2.64 million tonnes) for 6% of the total cost (Rs. 1.8 million), giving ≈ Rs. 0.68 per tonne, the lowest among all modes.
Was this answer helpful?
0
0
Question: 3
If the costs per tonne of transport by ship, air and road are represented by P, Q and R respectively, which of the following is true?
Show Hint
Rank modes by calculating cost per tonne for each using volume and cost shares.
Ship: 9% of 12 million = 1.08 million tonnes, cost share = 10% of Rs. 30 million = Rs. 3 million → cost/tonne ≈ Rs. 2.78.
Air: 11% of 12 million = 1.32 million tonnes, cost share = 7% of Rs. 30 million = Rs. 2.1 million → cost/tonne ≈ Rs. 1.59.
Road: ≈ Rs. 0.68/tonne.
Thus P (ship)>Q (air)>R (road).
