the cost price of 20 kg apples is same as the cost price of 15 kg mangoes if 10 kg mangoes are sold for Rs 700 rupees at a loss of 30% find the cost price of 10 kg apples
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Let : cost of one apple = X.
Cost of one mango =Y.
Now,
According to given condition -
Cost of 18 apples = 18X
And
Cost of 45 mangoes =45Y
So,
18X+45Y=981 (1)
And
10X +25Y =K (2)
WHERE K IS COST OF 10 APPLE AND 25 MANGOES.
By solving first equation
9*(2X+5Y)=981
2X+5Y=981/9
2X+5Y=109
Multiply 5 on both sides.
5*(2X+5Y)=109*5
10X+25Y=545 (3)
By equation (2)
K=10X+25Y
SO
K=545
COST OF 10 APPLE AND 25 MANGOES IS 545 RUPEES.
REGARDS.
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