Profit, Loss and Discount

CP of each goat = 6600. Loss of 16 2/3% (1/6) on first: Loss = 6600/6 = 1100. Profit of 33 1/3% (1/3) on second: Profit = 6600/3 = 2200. Net profit = 2200 - 1100 = 1100. Total CP = 6600 + 6600 = 13200. Profit % = (1100 / 13200) * 100 = 100/12 = 25/3%.

CP of 1 pencil = 4/6 = 2/3. SP of 1 pencil = 6/4 = 3/2. Profit = 3/2 - 2/3 = 5/6. Profit % = (5/6) / (2/3) * 100 = (5/6 * 3/2) * 100 = 15/12 * 100 = 1.25 * 100 = 125%.

CP of 1 orange = 1/5 + 1/8 = 13/40 per 2 oranges. CP per orange = 13/80. CP per dozen = 12 * 13/80 = 1.95. Selling price for 20% profit = 1.95 * 1.2 = 2.34.

Let CP = x. After 6% profit, price = 1.06x. After 5% loss, price = 1.06x * 0.95 = 1.007x. 1.007x = 2014. x = 2014 / 1.007 = 2000.

Let CP be x. Loss of 20% means SP = 0.8x. Gain of 5% means SP = 1.05x. The difference is 0.25x = 100. Thus, x = 100 / 0.25 = 400.

Let A's CP be x. B's CP = 1.2x. C's CP = 1.2x * 1.25 = 1.5x. 1.5x = 225, so x = 225 / 1.5 = 150.

Let CP of A be x. B buys at 1.05x. C buys at 1.1 * 1.05x = 1.155x. 1.155x = 2310. x = 2310 / 1.155 = 2000.

Loss of 7% means the selling price is 93% of the cost price. 0.93 * CP = 651. CP = 651 / 0.93 = 700.

Let SP = 100. Then CP = 95. Profit = SP - CP = 5. Profit percentage = (Profit / CP) * 100 = (5 / 95) * 100 = 100 / 19 = 5.263%.

Let the original price be 100. Krishnan paid 80 (20% less). He sold it at 40% profit on his cost, so 80 * 1.4 = 112. The profit on the original price is 112 - 100 = 12%.

Loss of 20% means selling price is 80% of cost price. 0.8 * CP = 64000. CP = 64000 / 0.8 = 80000.

Total cost = 600 + 5% of 600 = 600 + 30 = 630. Profit = 15% of 630 = 94.5. Selling price = 630 + 94.5 = 724.50.

A 10% loss on a cost price of 15 means the loss is 1.5. Selling price = Cost Price - Loss = 15 - 1.5 = 13.50.