Question 135Asked in BPSC TRE 3.0 (2024) Mathematics Class 9-10

In 200 lt mixture of milk and water, the amount of water is 15%. The amount of milk that is required to be added into the mixture so that the amount of milk…200 लीटर मिश्रण में 15% तथा शेष दूध है, दूध के कितनी और मात्रा डाली जाए, ताकि परिणामी मिश्रण में 87.5% दूध हो जाए।

In 200 lt mixture of milk and water, the amount of water is 15%. The amount of milk that is required to be added into the mixture so that the amount of milk will be 87.5% is
200 लीटर मिश्रण में 15% तथा शेष दूध है, दूध के कितनी और मात्रा डाली जाए, ताकि परिणामी मिश्रण में 87.5% दूध हो जाए।
  1. A30 lt30 ली.
  2. B35 lt35 ली.
  3. C40 lt40 ली.
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (C) 40 lt40 ली.

Explanation

Water = 30 L stays fixed. For milk to be 87.5%, water must be 12.5% of the total, so total = 240 L; add 40 L of milk.पानी 30 ली. स्थिर; 87.5% दूध के लिए पानी 12.5% होगा, अतः कुल 240 ली.; 40 ली. दूध मिलाना होगा।

From BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper

This is question 135 of BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.