A bag contains coins of Rs. 1, 50 paisa and 25 paisa in the ratio 7 : 8 : 12 respectively. If the total amount in the bag is Rs. 560, then the number of 25 paisa coins in the bag is :एक थैले में 1 रुपये, 50 पैसे और 25 पैसे के सिक्के क्रमशः 7 : 8 : 12 के अनुपात में हैं। यदि थैले में कुल धन 560 रुपये है, तो थैले में 25 पैसे के सिक्कों की संख्या है :
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Correct answer: C. 480
Explanation
Let the numbers of coins be 7k, 8k and 12k. Value = 7k × 1 + 8k × 0.50 + 12k × 0.25 = 7k + 4k + 3k = 14k = 560, so k = 40. Number of 25 paisa coins = 12 × 40 = 480.माना सिक्कों की संख्या 7k, 8k और 12k है। कुल धन = 7k × 1 + 8k × 0.50 + 12k × 0.25 = 7k + 4k + 3k = 14k = 560, अतः k = 40। 25 पैसे के सिक्के = 12 × 40 = 480।More Mathematics & Numerical Ability questions
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