MathematicsMinua uses 30% of her monthly earnings for rent and 50% of the remaining amount for food and transportation. If she spends dollar 525 for food and transportation, calculate how much she pays for rent.

Minua uses 30% of her monthly earnings for rent and 50% of the remaining amount for food and transportation. If she spends dollar 525 for food and transportation, calculate how much she pays for rent.


  1. A
    400 dollars
  2. B
    450 dollars
  3. C
    500 dollars
  4. D
    550 dollars 

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    Solution:

    Let the monthly salary of minua be .
    given that 30 percent of her salary is for rent,
    Here, we use the formula:
    Thus, money spent on rent: Total money = Money on rent + Money not on rent.
    Rest of money: Taking LCM we get: Now, 50% of this money is used for food and transportation, Thus, 50% of is spent on food and transportation.
    Money is spent on food and transportation:Now given that 525 dollar are spent on food and transportation,
    Amount spent on rent is: Minua's monthly salary is: 1500 dollars.
     So, we get:
    The amount spent for rent is 450 dollars.
     
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