Swapna bought two books for Rs.800 each. She sold one book at a loss of 10% and other at a
profit of 15%. Find the selling

1 thought on “Swapna bought two books for Rs.800 each. She sold one book at a loss of 10% and other at a <br /> profit of 15%. Find the selling”

1. Answer :

   → Profit = 1¼%

   Explanation :

   C. P. (cost price) of the two books ₹800 each.

   ∴ Total C. P. = 800*2 = ₹1,600.

   Now,

   One book is sold in 10% loss

   So,

   → 800 – (10% of 800)

   → 800 – 80

   → 720

   ∴ S. P.(selling price) of one book ₹720

   And also, another one in 15% profit.

   So,

   → 800 + (15% of 800)

   → 800 + 120

   → 920

   ∴ S. P. of another book ₹920.

   We have,

   C. P. = 1,600

   S. P. = 920 + 720 = ₹1,620

   Since,

   S. P. > C. P.

   There is a gain in whole transaction.

   Gain = S. P. – C. P. = 1,620 – 1,600 = ₹20

   ∴ Gain% = gain*100/C.P.

   = 20*100/1600

   = 5/4

   = 1¼%

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