Question 150Asked in BPSC TRE 2.0 (2023) Mathematics Class 9-10

Find the discount equivalent to successive discounts 20%, 10%, 5% of the invoice.बीजक के क्रमिक बट्टों 20%, 10%, 5% के तुल्य बट्टा ज्ञात कीजिए।

बीजक के क्रमिक बट्टों 20%, 10%, 5% के तुल्य बट्टा ज्ञात कीजिए।
  1. A31·6%31·6%
  2. B68·4%68·4%
  3. C35%35%
  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) 31·6%31·6%

Explanation

Net price = 0·8 × 0·9 × 0·95 = 0·684 of the invoice, so the equivalent discount is 31·6%.शुद्ध मूल्य = 0·8 × 0·9 × 0·95 = 0·684 (बीजक का), अतः तुल्य बट्टा 31·6%।

From BPSC TRE 2.0 (2023) Mathematics Class 9-10 — Previous Year Paper

This is question 150 of BPSC TRE 2.0 (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.