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# True Discount

1.

The simple interest and the true discount on a certain sum for a given time and at a given rate are Rs. 85 and Rs. 80 respectively. The sum is:

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2.

The banker’s discount on a bill due 6 months hence at 6% is Rs. 18.54. What is the true discount?

T = 6 months = 1/2 year
R = 6%
TD =(BD* 100)/(100+TR) = (18.54 *100)/(100+(6/2)) = 1854/103 = Rs.18

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3.

Find the selling price of an article listed at Rs. 10 on which there are discounts of 20% and 10%.

10 * 20% = 10 * 0.20 = Rs. 2
Rs. 10 - Rs. 2 = Rs. 8
Rs. 8 * 10% = 8 * 0.10 = Rs 0.80
Rs 8 - Rs 0.80 = Rs 7.20
Selling Price = Rs. 7.20

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4.

The present worth of Rs. 2310 due 2 1/2 years hence, the rate of interest being 15% per annum, is:

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5.

The simple interest and the true discount on a certain sum for a given time and at a given rate are Rs. 85 and Rs. 80 respectively. The sum is:

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6.

A vase has a marked price of Rs. 560. Simran pays Rs. 336 for it because she got 2 successive discounts, one of 20% and other of _____

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7.

The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs.24. The persent worth is?

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8.

Rs. 20 is the true discount on Rs. 260 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?

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9.

Marked price of a TV is 20% more than its cost price. Yet Ajay gives a discount of 30% while selling the TV.  How much per cent loss did he incur?

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10.

A man wants to sell his scooter. There are two offers, one at Rs. 12,000 cash and the other a credit of Rs. 12,880 to be paid after 8 months, money being at 18% per annum. Which is the better offer?