Q: A Trades man bought 500m of electric wire at Rs 0 75/ m He sold 60% - Maths - Mensuration

Question

Q: A Trades man bought 500m of electric wire at Rs 0 75/ m He
sold 60% of the wire at a a profit of 8% At what percentage profit
should he sell the remainder so as to gain 12% on the whole
transaction

Gursheen kaur. · Accepted Answer

CP of 500m wire = 500*0 75 = Rs 375 CP of 300m = 300 * 75 = Rs 225 CP of 200m = 200 * 75 = Rs 150 now, if he sold 60% of the wire at a a profit of 8%, then SP of 300m wire = $225 * (1 + \frac{8}{100}) = 225 * 1 08 = R s 243$ Also, when 500m of electric wire is sold at 12 % then SP of 500m = $375 * (1 + \frac{12}{100}) = 375 * 1 12 = R s 420$ therefore, $420 = 243 + 150 x 420 - 243 = 150 x 177 = 150 x o r x = \frac{177}{150} = 1 18$ thus, the remaining 40% electric wire (200m is sold at profit of 18% ) and the overall profit of 500 m electric wire is 12%

Q: A Trades man bought 500m of electric wire at Rs. 0.75/ m . He sold 60% of the wire at a a profit of 8%. At what percentage profit should he sell the remainder so as to gain 12% on the whole transaction.