IB ACIO Grade II previous year question
Cost of 3 pens + 7 pencils = ₹84; cost of 8 pens + 3 pencils = ₹177. Find cost of 3 pens + 3 pencils.
Asked in IB ACIO Grade II (16 Sep 2025 Shift 1) · Quantitative Aptitude
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Correct answer: (A) ₹72
3p+7c=84 …(i); 8p+3c=177 …(ii). ×3 in (i): 9p+21c=252; ×7 in (ii): 56p+21c=1239. Subtract: 47p=987 ⟹ p=21. From (i): 63+7c=84 ⟹ c=3. So 3p+3c = 63+9 = 72.
हिंदी में प्रश्न
3 पेन और 7 पेंसिल की कीमत ₹84 है तथा 8 पेन और 3 पेंसिल की कीमत ₹177 है। 3 पेन और 3 पेंसिल की कीमत ज्ञात करें।
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सही उत्तर: (A) ₹72
3p+7c=84 …(i); 8p+3c=177 …(ii). (i)×3: 9p+21c=252; (ii)×7: 56p+21c=1239. घटाने पर: 47p=987 ⟹ p=21. (i) से: c=3. अतः 3p+3c = 63+9 = 72.
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