How many fundamental rights were given in the beginning?

Which of the following is an example of a cold desert?

If Manoj buys 324 toffees for Rs 486, then how many toffees should he sell for Rs 90 to make 50% profit?

Sunil has 40 coins of 10 paise and 25 paise each. If he has Rs 7.75, then how many 10 paise coins are there?

A student got 30% marks in an examination and failed because he got 12 marks less. Another student got 40% marks in the same examination and got 18 marks more than the minimum passing marks. Must have marks to pass

The marked price of an article is Rs 200. A profit of 25% is also earned by giving a discount of $$60{1\over2}\%$$ on the marked price. What is the cost price of that article?

A radio is sold for Rs.900 at 10% profit. If it had been sold for Rs 890, what would have been the actual profit or loss?

30 oranges and 75 apples were purchased for Rs 510  If the price per apple was 2 then the average price of orange was?