A battery manufacturer manufactures five different types of batteries. The total revenue for the year 2020 is Rs. 25,00,000 and 20,000 units were exported in 2020. The distribution of revenue and units for the five different types of batteries is shown in the charts.

Which type of the battery provides the highest revenue per unit of export?

Correct option is C

Given:
Total revenue for 2020 =Rs25,00,000
Total units exported in 2020=20,000 units
Formula Used:
​$$\text{Revenue per unit} = \frac{\text{Total revenue from type of battery}}{\text{Total units sold of that battery type}}$$​​
Solution:
Export of Unit Li-ion =20,000 × 30%= 6000
Export of Unit Sodium =20,000 × 2%= 400
Export of Unit M-Air =20,000 × 20%= 4000
Export of Unit Lead Acid =20,000 × 35%= 7000
Export of Unit S-Capacitor =20,000 × 13%= 2600
Revenue of Unit Li-ion =25,00,000 × 35%= 8,75,000
Revenue of Unit Sodium =25,00,000 × 5%= 1,25,000
Revenue of Unit M-Air =25,00,000 × 20%= 5,00,000
Revenue of Unit Lead Acid =25,00,000 × 25%= 6,25,000
Revenue of Unit S-Capacitor =25,00,000 × 15%= 3,75,000
Revenue of battery per unit export:
Li-ion=8,75,000/6000=145.83
Sodium=1,25,000/400=312.5
M-Air=5,00,000/4000=125
Lead Acid=6,25,000/7000=89.28
Capacitor=3,75,000/2600=144.23
The highest revenue per unit of export is Sodium.