Start learning 50% faster. Sign in now
Solution: Here, the ‘one-club’ card has to be drawn from 13 club cards. So, its events = 13C1 And ‘one-diamond’ card has to be drawn from 13 diamond cards. So, its events = 13C1 So, concerned events = 13C1 × 13C1 Total events (as two cards are to be drawn from 52 cards) = 52C2 So, P(E) = 13C1 × 13C1 / 52C2 = 13/102
A seller marked an item above its cost price and allows a discount of 25% on it. On the discounted price, the seller charges a packaging price which is ...
A shopkeeper bought two articles for Rs. 250 each. If he sold one of them at 40% profit and the other at 20% loss, then find the difference between the ...
The cost price of two articles is same. One article is sold at 25% profit and another at 12% loss. If the selling price of one article is Rs. 777 more t...
The cost price of article A and B is Rs. ‘X’ and Rs. (X + 750), respectively. Article A is sold at 20% profit while article B is sold at 10% loss. I...
An item is sold at 70% of its marked price, resulting in a 40% profit. Determine the ratio of the marked price to the cost price for this item.
Neha purchased a bicycle for Rs. 8,000 and sold it to Heena, making a profit of 12%. Heena then spent Rs. 640 on repairs and sold the bicycle to Tina, e...
By selling an article for 2640, a person loses 15% of its selling price. At what price (in RS) should he sell it to gain 15% on its cost price?
A shopkeeper sold a toy for Rs. 980 after offering a 30% discount on the labeled price. If he had not given the discount, he would have made a 25% profi...