8.Math -Profit And Loss

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  1. The price of petrol increased by 25%. By what percentage must a customer reduce the consumption so that the earlier bill on the petrol does not alter ?
  1. 20%
  2. 25%
  3. 30%
  4. 33.33%
Answer : (1)
  1. In a new budget, the price of petrol rose by 25%. By how much percent must a person reduce his consumption so that his expenditure on it does not increase?

(1) 10% 

(2) 15%

(3) 20% 

(4) 25%

Ans: 3
  1. Sanjay sold an article at a loss of 25%. If the selling price had been increased by Rs. 175, there would have been a gain of 10%. What was the cost price of the article?

(1) Rs. 350 

(2) Rs. 400

(3) Rs. 500 

(4) Rs. 750

Ans: 3
  1. If the radius of a circle is increased by 50%, the perimeter of the circle will increase by
  1. 20%
  2. 30%
  3. 40%
  4. 50%
Answer : (4)
  1. The length of the side of a square (5.0 cm x 5.0 cm) is increased by 1%. By what percentage (%), the area of the square increases?

(1) 1% (2) 2%

(3) 2.5 % (4) 4%

Ans. 2
  1. The length of the side of a square (5.0 cm x 5.0 cm) is increased by 1%. By what percentage (%), the area of the square increases?

(1) 1% (2) 2%

(3) 2.5 % (4) 4%

Ans. 2
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