# Firojchacha got total Rs. 719.50 by selling a pant at 20% profit and shirt at 15% profit. If he would sell the pant at 25% profit and the shirt at 20% profit, then he would get Rs. 30.50 more. Let us calculate the cost prices of the pant and the shirt.

Let the cost price of shirt be X

Let the cost price of Pant be Y

selling a pant at 20% profit and shirt at 15% profit.

We get ;

Y+ +X+ = = Rs. 719.5

24Y+23X = 14390

selling a pant at 25% profit and shirt at 20% profit.

We get ;

Y+ +X+ = = Rs. 719.5+Rs. 30.5 = Rs. 750

25Y+24X = 15000

Subtracting 2nd from 1st

25Y+24X–24Y–23X = 15000 – 14390

X + Y = 610

X = 610 – Y

Placing value of X in 2nd eq

25Y + 24(610 – Y) = 15000

Y = 15000 – 14640 = Rs. 360

X = 610 – 360 =Rs. 250

Cost price of pant is Rs. 360

Cost price of shirt is Rs. 250

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