71. A trader gives an additional concession of 35% on an article which is already get discounted by 20% on the marked price. If the buyer pays an amount of 1300 for the article, then the marked price is
76. By selling an article, a man makes a profit of 25% of its selling price. His profit per cent is
(a) 20%
(b) 25%
(c) \(\displaystyle 16\frac{2}{3}\%\)
(d) \(\displaystyle 33\frac{1}{3}\%\)
(e) \(\displaystyle 8\frac{1}{3}\%\)
Solution: (d)
If the S.P. of article be x, then its
CP = \(\displaystyle x-\frac{x}{4}=\frac{{3x}}{4}\)
Gain % = \(\displaystyle \frac{{\frac{x}{4}}}{{\frac{{3x}}{4}}}\times 100\)
= \(\displaystyle \frac{{100}}{3}=33\frac{1}{3}\%\)
77. If Vipin started a business with an investment of Rs. 42,000. After 5 months Amit joined him with a capital of Rs. 22,000. At the end of the year the total profit was Rs.16,409. What is Vipin’s share in the profit?
(a) Rs. 16244
(b) Rs. 12568
(c) Rs. 10782
(d) Rs. 5677
(e) None of these
Solution: (b)
Ratio of the equivalent capitals of Vipin and Amit for 1 year = 42000 × 12 : 22000 × 7
= 42 × 12 : 22 × 7 = 252 : 77
Total profit = Rs. 16409
Therfore= Vipins share= \(\displaystyle \frac{{252}}{{252+77}}\times 16409=Rs.12568\)
78. By selling an article for 960 a man incurs a loss of 4%; what was the cost price ?