Question
What is the main purpose of a digital signature in
public key cryptography?Solution
A digital signature in public key cryptography is used to verify the integrity and authenticity of data. It ensures that the data has not been altered and that it was indeed generated by the claimed sender. This is achieved by using the sender's private key to sign the data.
A shopkeeper purchases 140 kg of sugar at Rs. 55 per kg. He sells a portion of it at a 20% profit and the remaining at a 10% loss. If his total profit i...
The cost price of an article is 30% less than its selling price. For how much profit was it sold? (Round off up to 2 decimal plac...
A man bought two articles for $800 each. He sold one at a profit of 20% and the other at a loss of 25%. What is the overall profit or loss percentage?
A dishonest seller, at the time of selling and purchasing uses weight 10% less and 20% more per kg respectively. Find the approx. percent profit earned...
A school bag is sold for Rs.450 after giving two successive discounts of 10% and 20%. If school bag is marked up by Rs.300 above its cost price, then fi...
An item is marked up by 60% over its cost price and sold with two successive discounts of 15% and 10%. What is the shopkeeper’s profit or loss percent...
- A trader purchases an article for Rs. 2,600. It is marked at 20% above cost price and then sold after offering a discount of Rs. 200. Determine the profit ...
A shopkeeper purchases six small cold drink bottles for Rs. 100. For how much should he sell one such bottle to get a profit of 20%?
If the selling price and cost price of a book is Rs. 440 and Rs. 320, then find the profit percentage in this transaction.
Two vendors sell an electronic gadget for Rs. 1500, making a profit of 20%. One vendor calculates his profit based on cost price, while the other consid...
