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If 5 apples and 4 oranges cost Rs. 340, what is the price of one apple and one orange?
  1. Apple = Rs. 30, Orange = Rs. 25
  2. Apple = Rs. 40, Orange = Rs. 20
  3. Apple = Rs. 50, Orange = Rs. 15
  4. Apple = Rs. 45, Orange = Rs. 10
Explanation


Let apple = x, orange = y

5x + 4y = 340

Try options:

B) 5×40 + 4×20 = 200 + 80 = 340 

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