Suppose you have sufficient amount of rupee currency in three denominations : ₹ 1, ₹ 10 and ₹ 50. In how many different ways can you pay a bill of ₹ 107?
Explanation & Solution
The correct answer is (C) 18.
Explanation:
We need to find different combinations of Rs. 1, Rs. 10 and Rs. 50 notes that sum to 107. By systematically listing all possibilities with different numbers of Rs. 50 notes (0, 1, 2), Rs. 10 notes, and Rs. 1 notes, we get 18 different combinations.
हिंदी में प्रश्न एवं आदर्श उत्तर
मान लीजिए, आपके पास तीन मूल्य-वर्ग, ₹ 1, ₹ 10 और ₹ 50, में रुपया मुद्रा पर्याप्त मात्रा में है। आप ₹ 107 के एक बिल का भुगतान कितने विभिन्न तरीकों से कर सकते हैं?
सही उत्तर (C) 18 है।
व्याख्या:
We need to find different combinations of Rs. 1, Rs. 10 and Rs. 50 notes that sum to 107. By systematically listing all possibilities with different numbers of Rs. 50 notes (0, 1, 2), Rs. 10 notes, and Rs. 1 notes, we get 18 different combinations.