A fruit vendor bought watermelon and pineapple in ratio of 4 : 5. Some watermelon was purchased by Albert such that the ratio becomes 2: 5. Find number of watermelon purchased by Albert, if the fruit vendor bought total 90 fruits.
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Answer:
4x + 5y = 90 -----(i)
2x + 5y =?
there fore albert took 70
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Answer:
let the no. of pinapple purchased be x.
cost price of pineapple=5x.
he buys equal no. of bananas.
so no. of bananas=x.
cost price of x bananas=2x.
Now, he makes a profit of 20% on pineapple.
therefore, selling price of oranges=5x+20%of 5x
=6x
profit on oranges=6x-5x=x
he makes a profit of 15% on bananas
therefore, selling price of bananas=2x+15% of 2x
=23x upon 10
profit on bananas=23x /10-2x=3x /10
Total profit made =x+3x /10=13x /10
According to ques,,, 13x /10=Rs 390
therefore x=300
Step-by-step explanation:
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