(1). If the cost price of 10 articles is equal to the selling price of 8 articles. Then gain percent is

• (a). 10%
• (b). 8%
• (c). 50%
• (d). 25%
• (e). None of these

(2). An article is marked 40% on the cost price and discount of 30% is allowed. What is the gain or loss percentage?

• (a). 10% gain
• (b). 5% gain
• (c). 2% Loss
• (d). 12% Loss
• (e). None of these

(3). A man bought oranges at the rate of 8 for Rs. 34 and sold them at the rate of 12 for Rs.57. How many oranges should he sell to earn a net profit of Rs.45?

• (a). 90
• (b). 100
• (c). 135
• (d). 150
• (e). None of these

(4). By selling an article for Rs. 144 a person gained such that the percentage gain equals the cost price of the article. The cost price of the article is

• (a). Rs.90
• (b). Rs.80
• (c). Rs. 75
• (d). Rs.60
• (e). None of these

• (a). 1
• (b). 2
• (c). 3
• (d). 4
• (e). 5