[Shruti Sethi]

3(x+4) – 2(2x-1) = 5(x-3) + 2<div>3x + 12 – 4x + 2 = 5x – 15 + 2</div><div>14 – x = 5x – 13</div><div>14 – x – 5x + 13 = 0</div><div>27 – 6x = 0</div><div>27 = 6x</div><div>x = 4.5</div>

Solved.

[Shruti Sethi]

Cost Price (CP) of Pen = Rs. 10 <div>Selling Price (SP) of Pen = Rs. 5</div><div>
</div><div>Since SP<CP, he incurs a loss.</div><div>Loss = CP – SP</div><div> = 10- 5</div><div> = 5 (in rupees)</div><div>
</div><div>Loss Percentage = Loss / CP × 100</div><div> = 5/10 × 100</div><div> = 50%</div>