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Question 138
The total discount on Rs. 1860 due after a certain time at 5% is Rs. 60. find the time after which it is due:
Solution
Given,
Total discount = Rs 60
Amount = Rs 1860
Rate = 5%
Let Time = T
Total discount = $$\frac{A\times R\times T}{100+RT}$$
$$=$$> Â $$60=\frac{1860\times5\times T}{100+5T}$$
$$=$$>Â 100 + 5T = 155T
$$=$$> Â 150T = 100
$$=$$>Â T =Â $$\frac{2}{3}$$ year
$$=$$>Â T =Â $$\frac{2}{3}$$ x 12 months = 8 months
Hence, the correct answer is Option C
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