A bag contains one rupee, 50 paise and 25 paise coins in the proportion 5 : 7 :9. If the total amount in the bag is Rs. 430, then how many 25 paise coins are there?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer is option 2 i.e. 360
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Understanding |
Application |
Calculation |
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Suppose one rupee, 50 paise and 25 paise coins are 5x, 7x & 9x respectively. |
Total amount = Rs. 430 So, 5x + 7x/2 + 9x/4 = 430 ⇒ x = 40
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⇒ 5x + 7x/2 + 9x/4 = 430 ⇒ (20x + 14x + 9x)/4 = 430 ⇒ 43x/4 = 430 ⇒ x = 40
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Since 25 paise coins are 9x. |
Hence, 25 paise coins = 9 × 40 = 360 |
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