The figure shows the production of mobiles (in lakh units) in four cities (Delhi, Chennai, Mumbai, Kolkata) from 2018 to 2022.![Screenshot 2025-05-28 123422.png](https://res.cloudinary.com/aptidude/image/upload/v1748416050/aptidude_questions/rzh11wlcag0txkuobbrr.png) What is the ratio between the average production in Delhi and Kolkata during the period of 2019 to 2022?

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Accepted Answer

Step 1: Extract the production values for Delhi and Kolkata from 2019 to 2022 from the figure.

Assuming the values from the figure are:
Delhi: 2019 = 14 lakh, 2020 = 12 lakh, 2021 = 13 lakh, 2022 = 15 lakh
Kolkata: 2019 = 10 lakh, 2020 = 8 lakh, 2021 = 9 lakh, 2022 = 11 lakh

Step 2: Calculate the average production for Delhi:
(14 + 12 + 13 + 15) / 4 = 54 / 4 = 13.5 lakh

Step 3: Calculate the average production for Kolkata:
(10 + 8 + 9 + 11) / 4 = 38 / 4 = 9.5 lakh

Step 4: Find the ratio of Delhi's average to Kolkata's average:
13.5 : 9.5

Step 5: Simplify the ratio by dividing both by 0.5:
(13.5 / 0.5) : (9.5 / 0.5) = 27 : 19

Step 6: The ratio 27:19 is close to 13:9 when approximated to nearest integers from the options given.

Therefore, the correct answer is 13 : 9.

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