321. A man sold two houses for Rs. 7.81 lakhs each. On one he gained 5% and on the other he lost 5%. What percent is the effect of the sale on the whole ?

1. 1. 0.25% loss

   
   
   

   2. 0.25 % gain

   
   
   

   3. 25 % loss

   
   
   

   4. 25 % gain

   
   
   

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1. View Hint View Answer Discuss in Forum

   Loss% ( common gain or loss % / 10)²
   

   Correct Option: A

   Loss% ( common gain or loss % / 10)²
   = ( 5/10 )² = 1/4 % = 0.25%

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322. Pofit after selling commodity for Rs. 425 is same as loss after selling it for Rs. 355. The cost of the commodity is ?

1. 1. Rs. 385

   
   
   

   2. Rs. 390

   
   
   

   3. Rs. 395

   
   
   

   4. Rs. 400

   
   
   

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1. View Hint View Answer Discuss in Forum

   Let C.P. = Rs. x then, 425 - x = x - 355

   Correct Option: B

   Let C.P. = Rs. x then, 425 - x = x - 355
   ⇒ 2x = 780
   ∴ x = 390

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323. If two mixers and one T.V. cost Rs. 7000, while two T.V.s and one mixer cost Rs. 9800. The value of one T.V. is ?

1. 1. Rs. 2800

   
   
   

   2. Rs. 2100

   
   
   

   3. Rs. 4200

   
   
   

   4. Rs. 8400

   
   
   

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1. View Hint View Answer Discuss in Forum

   2 x + y = 7000 ....(i)
   x + 2 y = 9800 .....(ii)

   Correct Option: C

   2 x + y = 7000 ....(i)
   x + 2 y = 9800 .....(ii)
   Solving (i) and (ii), we get,
   y = 4200

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324. The cost price of an article, which on being sold at a gain of 10% yields Rs. 6 more than when it is sold at a loss of 10% is ?

1. 1. Rs. 30

   
   
   

   2. Rs. 25

   
   
   

   3. Rs. 24

   
   
   

   4. Rs. 20

   
   
   

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1. View Hint View Answer Discuss in Forum

   10% profit - 10% loss = 6
   ⇒ 20% of cost price = Rs. 6

   Correct Option: A

   10% profit - 10% loss = 6
   ⇒ 20% of cost price = Rs. 6
   ⇒ Cost Price = (6 x 100)/ 20 = Rs. 30.

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325. An umbrella marked at Rs. 80 is sold for Rs. 68. The rate of discount of ?

1. 1. 15%

   
   
   

   2. 12%

   
   
   

   3. 17¹¹/₁₇

   
   
   

   4. 20%

   
   
   

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1. View Hint View Answer Discuss in Forum

   Rate of discount = (12 / 80) x 100% = 15%

   Correct Option: A

   Rate of discount = (12 / 80) x 100% = 15%

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