Discount
 A housewife saved ₹ 2.50 in buying a dress on sale. If she spent ₹ 25 for the dress, approximately how much per cent she saved in the transaction?

 8%
 9%
 10%
 11%

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The housewife spends ₹ 25 and saves ₹ 2.50.
i.e., She pays 25 for a dress of ₹ 27.50.∴ % Saving = 2.50 × 100 ≈ 9%(app.) 27.50 Correct Option: B
The housewife spends ₹ 25 and saves ₹ 2.50.
i.e., She pays 25 for a dress of ₹ 27.50.∴ % Saving = 2.50 × 100 ≈ 9%(app.) 27.50
 A discount of 15% on one article is the same as discount of 20% on a second article. The costs of the two articles can be :

 ₹ 85, ₹ 60
 ₹ 60, ₹ 40
 ₹ 40, ₹ 20
 ₹ 80, ₹ 60

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15% of 80 = 80 × 15 = 12 100 and 20% of 60 = 60 × 20 = ₹ 12 100
Therefore, 15% of 80 and 20% of 60 are same. Hence the cost prices should be ₹ 80 and ₹ 60.Correct Option: D
Check through options
15% of 80 = 80 × 15 = 12 100 and 20% of 60 = 60 × 20 = ₹ 12 100
Therefore, 15% of 80 and 20% of 60 are same. Hence the cost prices should be ₹ 80 and ₹ 60.
 Peter bought an item at 20% discount on its original price. He sold it with 40% increase on the price he bought it. The new sale price is greater than the original price (in per cent) by

 10
 8
 7.5
 12

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Let the original price of item be Rs. 100.
C.P. for Peter = Rs. 80S.P. for Peter = Rs. 80 × 140 = Rs. 112 100 ∴ Required per cent = (112 − 100) × 100 = 12% 100
Correct Option: D
Let the original price of item be Rs. 100.
C.P. for Peter = Rs. 80S.P. for Peter = Rs. 80 × 140 = Rs. 112 100 ∴ Required per cent = (112 − 100) × 100 = 12% 100
 What was the rate of discount if a computer with marked price ₹ 30,000 was sold for ₹ 28,000 ?

 20%

7 1 % 2 
6 2 % 3  15%

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Discount
= Rs. (30000 – 28000)
= Rs. 2000
If the rate of discount be x%, then30000 × x = 2000 100
⇒ 300x = 2000⇒ x = 2000 = 20 = 6 2 % 300 3 3 Correct Option: C
Discount
= Rs. (30000 – 28000)
= Rs. 2000
If the rate of discount be x%, then30000 × x = 2000 100
⇒ 300x = 2000⇒ x = 2000 = 20 = 6 2 % 300 3 3
 A photographer allows a discount of 10% on the advertised price of a camera. The price (in Rs.) that must be marked on the camera, which cost him Rs. 600, to make a profit of 20% would be

 650
 800
 700
 850

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Let the marked price of camera be Rs. x.
According to the question,
(100 – 10)% of x = 120% of 600
⇒ x × 90 = 600 × 120⇒ x = 600 × 120 = Rs. 800 90 Correct Option: B
Let the marked price of camera be Rs. x.
According to the question,
(100 – 10)% of x = 120% of 600
⇒ x × 90 = 600 × 120⇒ x = 600 × 120 = Rs. 800 90