Question 104Asked in BPSC TRE 1.0 (2023) Mathematics Class 9-10

Some money has been borrowed on compound interest. After 2 years and 3 years, the principal turns out to be ₹9,680 and ₹10,648 respectively. Then the…चक्रवृद्धि ब्याज पर दिए गए धन के 2 वर्ष तथा 3 वर्ष के मिश्रधन क्रमशः ₹9,680 तथा ₹10,648 हो जाते हैं। मूलधन होगा

Some money has been borrowed on compound interest. After 2 years and 3 years, the principal turns out to be ₹9,680 and ₹10,648 respectively. Then the principal is
चक्रवृद्धि ब्याज पर दिए गए धन के 2 वर्ष तथा 3 वर्ष के मिश्रधन क्रमशः ₹9,680 तथा ₹10,648 हो जाते हैं। मूलधन होगा
  1. A₹8,000₹8,000
  2. B₹9,000₹9,000
  3. C₹7,000₹7,000
  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: (A) ₹8,000₹8,000

Explanation

The ratio of consecutive amounts is 10648/9680 = 1.1, so the principal = 9680/1.1² = ₹8,000.क्रमागत मिश्रधनों का अनुपात 10648/9680 = 1.1, अतः मूलधन = 9680/1.1² = ₹8,000।

From BPSC TRE 1.0 (2023) Mathematics Class 9-10 — Previous Year Paper

This is question 104 of BPSC TRE 1.0 (2023) 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.