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The cost price of 20 articles is the same as selling price of x articles. If the profit is 25% then the number of articles is

  1. 15
  2. 16
  3. 17
  4. 18

If a discount of 20% is given then selling price of an article is Rs. 24. What would be the selling price if the discount of 30% is given?

  1. Rs. 22
  2. Rs. 19
  3. Rs. 20
  4. Rs. 21

The GCD and LCM of two polynomials are x+1 and x4-1 respectively. If one of the polynomials is x2+1, find other one

  1. (x + 1)(x2 – 1)
  2. x3-1
  3. x2 + x – 1
  4. x2 – x + 1

Rs. 800 amounts to Rs. 920 in 3 years at simple interest. If the interest rate is increased by 3%, it would amount to

  1. Rs. 992
  2. Rs. 1056
  3. Rs. 1112
  4. Rs. 1182

Calculate the compound interest on Rs. 9,000 in 2 years when the rate of interest for successive years are 10% and 12% respectively.

  1. Rs. 2,088
  2. Rs. 4,256
  3. Rs. 2,588
  4. Rs. 1,288

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