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प्रश्न
Choose the most appropriate option.
Praveen has Rs. 4,662 in the form of 2, 5 and 10 rupee notes. If these notes are in the ratio of 3:5:8, the number of five rupees notes with him is:
विकल्प
336
250
210
84
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उत्तर
210
Explanation:
Let the number of 2,5 and 10 rupees notes be 3x, 5x and 8x.
Then, sum of their values = 3x × 2 + 5x × 5 + 8x × 10
= 111 x
∴ 111 x = 4662
∴ `"x"=4662/111=42`
Hence, the number of 5 rupees notes = 42 × 5 = 210.
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