Question
 A bag contains 4 white balls, 5pink balls and 3 black
balls. 2 balls are drawn randomly. What is the probability that there are no black balls?Solution
 Required = 9C2 = 36 total = 12C2 = 66 probability = 36/66 = 6/11
What is the single discount rate that is equivalent to applying three successive discounts of 10%, 15%, and 20%, respectively?
The ratio of the C.P. and S.P. of an article is 15: 14. What is the Loss percent?
What will be the percentage profit after selling an article at a certain price if there is a loss of 30% if the article is sold at 1/4th of t...
A shopkeeper marked an article 40% above its cost price and made a profit of Rs. 80 when he sold the article after giving a discount of 25%. Find the pr...
A person purchased an article for Rs. 2000 which was marked up by 25% above its cost price. The discount given by seller to person was Rs. 200. By how m...
Ratio of the cost price of article ‘A’ to ‘B’ is 8:7, respectively. Article ‘A’ is marked up by 46% above its cost price and then sold at a ...
- If the average cost price of 25 identical shirts decreases by Rs. 5 after replacing one shirt with a new shirt that costs Rs. 100, what was the original co...
A trader allows two successive discounts of 20% and 10% on selling an article. If he gets 550 for that article, find its marked price.
A debtor can pay 78 paise in the rupee, but if his creditors would take 25% of his debts, he could pay them and have Rs 48 left. His debts and assets r...
One article is sold at 15% profit while other is sold at 5% loss such that the difference between their selling prices is Rs. 130. If the cost price of ...
Relevant for Exams:
