Aman has certain number of notes of denomination ₹20 and ₹10 which amount to ₹390. If the numbers of notes of each kind are interchanged, then the new amount is ₹90 less than before. Find the number of notes of ₹20 denomination.
16
The number of ₹20 denomination notes is 16, based on the equation set from the total amount and the exchange of notes.
Important Questions from Profit and Loss
What is the % profit on the cost price of an article if there is a profit of 20% on the selling price?
An article was purchased for Rs.7000. Later its price was marked up by 30%. It was sold at a discount of 10% on the marked-up price. What was the profit percent on the cost price?
A man bought two dogs for Rs. 2600. He sold one of them at a loss of 28% and the other at a profit of 36%. If each dog was sold for the same price. The cost price of the dog which was sold at loss was?
An article when sold at a discount of Rs. 100, the shopkeeper earns the profit of 140% and if it is sold at no discount, then profit will be 220%. Find the CP of the article.
A and B started business together by investing Rs. 45,000 in ratio of 2 : 3. If after 3 months C invests Rs. 30,000 then what would be the ratio of their profit sharing at end of one year (A : B : C)?
