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      Question

      Two friends, Ammu and Beenu, had some candies. One of

      them had 10 more candies than the other. The candies Ammu had were 60% of the total candies they had. How many candies did each have? 
      A 30, 50 Correct Answer Incorrect Answer
      B 20, 40 Correct Answer Incorrect Answer
      C 40, 50 Correct Answer Incorrect Answer
      D 20, 30 Correct Answer Incorrect Answer

      Solution

      Let the number of candies Ammu has = x

      Let the number of candies Beenu has = y

      Acc to the question, One has 10 more candies than the other.

      So, x = y + 10 or y = x + 10 (We'll decide which one fits later)

      Ammu has 60% of the total candies:

      x = 60 % of  (x + y )

      x = 60% of (x + y)

      x = 0.6 (x + y ) 

      put the value (y + 10) in place of x, we get 

      y + 10 = 0.6(y + 10 + y)

      4 = 0.2 y

      y = 20

      now, x = 20 + 10 = 30.

      So ammu has 30 candies and Beenu has 20 candies

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