From a sample of 200 software engineers, determine the ratio of those proficient in Python to those proficient in Java using the…

Question

From a sample of 200 software engineers, determine the ratio of those proficient in Python to those proficient in Java using the given information:

1. A. 11:12
2. B. 12:11 (Correct answer)
3. C. 7:6
4. D. 6:7

Correct Answer

Option B — 12:11

Detailed Solution & Explanation

The correct answer is 12:11.

Key Points

• Count each skill set including the overlap. Python-proficient = Python-only + both = 70 + 50 = 120. Java-proficient = Java-only + both = 60 + 50 = 110.
• The ratio Python : Java = 120 : 110 = 12 : 11.
• In set/Venn problems the 'proficient in X' total always adds the 'both' group to the 'only X' group; forgetting the overlap gives the reversed or wrong ratio.

प्रश्न (हिन्दी में)

200 ????????? ?????????? ?? ????? ??, ?? ?? ??????? ?? ????? ???? ????? ??? ???? ????? ?? ???? ??? ???? ????? ?? ?????? ????????? ????:

1. A. 11:12
2. B. 12:11
3. C. 7:6
4. D. 6:7