<p>(1) Damien bought a earring from the market, and later sold it at €5086.20 for a profit of 5%. Calculate the amount of money that Damien gained.<br> a. €251.70 b. €242.20 c. €232.20 d. €238.70</p> <p>(2) A shopkeeper mixes two variants of rice in a ratio 3:1. The first variant costs €8 per kg, while the other costs €12 per kg. If the mixed rice is sold at the price of €7.2 per kg then find the profit/loss percent incurred by the shopkeeper.<br> a. 20% profit b. 25% loss c. 20% loss d. 25% profit</p> <p>(3) Which of the following is the term used to indicate the price labelled on an article/product?<br> a. profit b. marked price c. discount d. loss</p> <p>(4) Ethan purchased 2000 CD players for his shop at €40 each. During transportation 400 CD players got damaged, and he sold the remaining CD players at the price of €50 each. Find overall profit/loss in percentage.<br> a. 10% loss b. 10% profit c. No profit and no loss d. 5% loss</p> <p>(5) Jennifer bought a house for €195000. She spent €9250 for renovation of the house when she bought it. Each year she spends €650 on maintenance of the house. After 11 years, she sells the house for €234800 . How much profit did she make?<br> a. €23400 b. €24700 c. €24050 d. €22750</p> <p>(6) If selling price of an article is 9/8 of its cost price, then what is the profit % in the transaction?<br> a. 14 6/8% b. 12 4/8% c. 15 7/8% d. 13 5/8%</p> <p>(7) If the cost price of 10 pencils is equal to the selling price of 24 pencils, find the loss percent.</p> <p>(8) §§N2§§ bought 2 swings at the price of €§§V9(280,410,10)§§ each. She sold one at a profit of §§V11(3,8,1)§§% and the other at a loss of 10%. What is her total loss or gain?</p> <p>(9) An electrician bought an old TV for €§§V0(139,170,1)§§ and spent €§§V3(3,10,1)§§ for fixing it. Finally, he sold it for €§§V5(174,238,1)§§. Find the gain percentage.</p> <p>(10) §§N0§§ buys 467 bananas for a total of €326.90 and sells them for €§§V8(1,10,1)§§§§V7(9,12,0.2)§§ per dozen. After she sells all of them, how much profit does she ma §§N3§§ ke?</p> \( \lim_{n \to \infty} \sum_{k=1}^n \int_{0}^{1} \frac{x^k \, dx}{\sqrt{1-x^2}} + \prod_{i=1}^m \left( 1 + \frac{1}{i} \right) = \int_{0}^{\infty} \frac{e^{-x^2}}{\sqrt{\pi}} \, dx \) B \( F(x) = \sum_{n=1}^\infty \frac{(-1)^{n+1} x^{2n+1}}{(2n+1)!} \( A \( \int_{0}^{\infty} \left( \sum_{k=0}^{\infty} \frac{(-1)^k x^{2k+1}}{(2k+1)!} \right) e^{-x} \, dx \)