A man invests equal sums in 6% stock and 8% stock, and gets 10% for his money. The 8% stock is at Rs. 80. What is the price at which he purchased the 6% stock?

A watch costing Rs. 120 was sold at a loss of 15%. At what price was it sold?

• [A] Rs. 112
• [B] Rs.102
• [C] Rs. 135
• [D] Rs. 110

A reduction of 10% in the price of tea enables a dealer to purchase 25 kg more tea for Rs. 22500. What is the reduced price per kg of tea?

• [A] Rs. 70
• [B] Rs. 80
• [C] Rs. 90
• [D] Rs. 100

Two successive price increase of 10% and 10% of an article are equivalent to a single price increase of:

• [A] 26(2/3)
• [B] 25%
• [C] 21%
• [D] 33(1/3)

A shopkeeper calculate percentage profit on the buying price and another on the selling price. What will be their difference in profits if both claim a profit of 20% on goods sold for Rs. 3000?

• [A] Rs. 200
• [B] Rs. 100
• [C] Rs. 150
• [D] Rs. 400
• [E] None of these

A trader sells goods to a customer at a profit of k% over the cost price, besides it he cheats his customer by giving 880 g only instead of 1 kg. Thus his overall profit percentage is 255. Find the value of k?

• [A] 8.33%
• [B] 8.25%
• [C] 10%
• [D] 12.5%