A shopkeeper offers 25% discount on the marked price of a Jacket and 15% on the marked price of a pair of gloves. If the marked price of a Jacket and a pair of gloves is Rs. 250 and Rs. 400 respectively, what will be the effective rate of discount on a purchase of 4 pair of gloves and six Jackets?
1). 25%
2). 30%
3). 35%
4). 20%
Total marked price of 4 pair of gloves and 6 jackets = (4 × 400) + (250 × 6)
⇒ 1600 + 1500 = Rs. 3100
According to the question:
Total selling price = $(\left( {1600 \times \frac{{85}}{{100}}} \right) + \left( {1500 \times \frac{{75}}{{100}}} \right))$= 1360 + 1125 = Rs. 2485
Required discount % = $(\left( {\frac{{3100 - 2485}}{{3100}}} \right) \times 100{\rm{}} = {\rm{}}20{\rm{\% \;}})$ (Approx)4. If 40% of m = n and 60% of n = 180 then, find the value of 85% of (m - n).