Question

If 45% of the electric cars in State 4 are air conditioned (AC) and remaining are non-AC, what is the total number of non-AC cars ? 
 

• A. 380
• B. 220
• C. 200
• D. 240
• E. 180

Hint:

When a percentage of a sub-group is given, find the sub-group count first using the ratio, then apply the percentage. Non-AC $=$ (100% $-$ 45%) of electric cars.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
We need to find the number of non-AC electric cars in State 4 using the ratio and percentage data.

Step 2: Detailed Explanation:
State 4 total = $35\% \times 8000 = 2800$ cars. Ratio diesel:petrol:electric = 7:5:2, total parts = 14. Electric cars in State 4 $= \frac{2}{14} \times 2800 = 400$. 45% are AC, so non-AC $= 55\% \times 400 = 220$.

Step 3: Final Answer:
The total number of non-AC electric cars in State 4 is 220.