# Moderate Pie Charts Solved QuestionData Interpretation Discussion

Common Information

ABC Ltd. is a courier company that uses three modes of transport for its services – Air, Rail and Road. The following pie charts show the distribution of the total number of couriers (Chart-1), Revenue Generated (Chart-2) and Total Cost (Chart-3) for the different modes of transport for the year 2006.

Assume that the only cost involved was that incurred on transport.

 Q. Common Information Question: 3/4 Which mode of transport has the least Cost of Transport per courier in the year 2006 for ABC Ltd.?
 ✖ A. Rail ✔ B. Road ✖ C. Air ✖ D. Data Insufficient

Solution:
Option(B) is correct

Let the total number of couriers be $360N$ while the Total Cost be $360C$ for ABC Ltd. in the year 2006.

So the cost per courier for:

$=\dfrac{72C}{150N}$

$=\dfrac{ 0.48C}{N}$

Rail transport,

$=\dfrac{90C}{120N}$

$= \dfrac{ 0.75C}{N}$

Air transport,

$=\dfrac{198C}{90N}$

$=\dfrac{ 2.2C}{N}$

It is clear from the above that the Road transport has the least cost of transport per courier.