Question
Sara has 150 kg of oranges (rotten and fresh). She sold
50% of the total oranges such that out of the remaining oranges, 30% are rotten. Find the percentage of fresh oranges left out of the initial quantity of oranges with her.Solution
ATQ, Quantity of oranges sold by Sara = 150Γ0.5 = 75 kg Quantity of oranges left = 150β75 = 75 kg Remaining quantity of rotten oranges = 75Γ0.3 = 22.5 kg So, quantity of fresh oranges left = 75β22.5 = 52.5 kg Required percentage = ( 52.5/150)Γ100 = 35%
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