Profit and Loss
 The cost price of a radio is $ 600. The 5% of the cost price is charged towards transportation. After adding that, if the net profit to be made is 15%, then the selling price of the radio must be

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Given , Cost price of a radio = $ 600 and its transportation charged = 5%
Actual C.P. of radio = 600 + 600 × 5 = $ 630 100
Profit = 15%
Correct Option: B
Given , Cost price of a radio = $ 600 and its transportation charged = 5%
Actual C.P. of radio = 600 + 600 × 5 = $ 630 100
Profit = 15%∴ Required S.P. = 600 × ( 100 + 15 ) = $ 724.50 100 Required S.P. = 600 × 115 = $ 724.50 100
 While selling to the retailer, a company allows 30% discount on the marked price of their products. If the retailer sells those products at marked price, his profit % will be :

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Given , Discount = 30%
If the marked price of the product be $ 100, then Cost Price = ( 100  30 ) = $ 70
Selling Price of retailer = $ 100∴ Gain percent = 30 × 100 = 300 70 7
Correct Option: D
Given , Discount = 30%
If the marked price of the product be $ 100, then Cost Price = ( 100  30 ) = $ 70
Selling Price of retailer = $ 100∴ Gain percent = 30 × 100 = 300 70 7 Gain percent = 42 6 % 7
 A merchant purchases a wrist watch for $ 450 and fixes its list price in such a way that after allowing a discount of 10%, he earns a profit of 20%. Then the list price of the watch is

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Here , Cost Price = $ 450 and discount on marked ( list ) price = 10%
If the marked price of watch be y, theny × 90 = 450 × 120 100 100
Correct Option: D
Here , Cost Price = $ 450 and discount on marked ( list ) price = 10%
If the marked price of watch be y, theny × 90 = 450 × 120 100 100 ⇒ y = 450 × 120 = $ 600 90
 By selling 33 meters of cloth, a person gains the cost of 11 meters. Find his gain%.

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From the question ,
Gain = 11 meter cloth , Cost of cloth = 33 meter and Selling of cloth = ( 33 + 11 ) = 44 metersGain percent
=11 × 100 = 100 33 3
Correct Option: A
From the question ,
Gain = 11 meter cloth , Cost of cloth = 33 meter and Selling of cloth = ( 33 + 11 ) = 44 metersGain percent
=11 × 100 = 100 33 3 Gain percent = 33 1 % 3
 If a shirt costs $ 64 after 20% discount is allowed, what was its original price in?

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If the original cost of shirt be y and after 20% discount on its then
y × ( 100  20 ) = 64 100 y × 80 = 64 100
Correct Option: B
If the original cost of shirt be y and after 20% discount on its then
y × ( 100  20 ) = 64 100 y × 80 = 64 100 ⇒ y = 64 × 100 = $ 80 80