Question : The cost price of the box of pens is Rs. 400. The shopkeeper gave a 10% discount on the cost price. What will be the selling price?

Option 1: Rs. 300

Option 2: Rs. 360

Option 3: Rs. 350

Option 4: Rs. 380

Question : The average of 21 numbers is 60. If each number is increased by 20, then find the number by which the average is increased.

Option 1: 12

Option 2: 18

Option 3: 15

Option 4: 20

Question : The law of demand states that when _____.

Option 1: income and price rise demand rises

Option 2: income rises demand rises

Option 3: price rises demand rises

Option 4: price falls demand rises

Question : The price of a bicycle is marked by a trader at Rs. 1000. He sold the bicycle allowing successive discounts of 20%, 10% and 5%. Thus the trader gained 14%, then the cost price of the bicycle (in rupees) is:

Option 1: Rs. 790

Option 2: Rs. 600

Option 3: Rs. 560

Option 4: Rs. 510

Question : If the cost price is Rs. 150 less than the selling price and the profit is 20%, then what is the selling price (in Rs.)?

Option 1: Rs. 750

Option 2: Rs. 800

Option 3: Rs. 850

Option 4: Rs. 900