Question
16 rotten bananas are accidentally mixed with 155 good
ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banana is taken out at random from this lot. Determine the probability that the banana is taken out is a good one.Solution
Numbers of bananas = Numbers of rotten bananas + Numbers of good bananas ∴ Total number of bananas = 155 + 16 = 171 bananas P(E) = (Number of favourable outcomes) / (Total number of outcomes) P(picking a good banana) = 155/171
The cost price of two dozen bananas is Rs.192 . After selling 18 bananas at the rate of Rs. 72 per dozen, the shopkeeper reduced to rate of Rs. 48 per d...
A vendor acquired a piece of clothing for Rs. ‘a’ and marked it 160% above its cost price, and sold it after giving two successive discounts of 900 ...
- A trader purchased 60 kg of wheat at Rs. 18 per kg. He sold some of it at a profit of 12% and the remaining at a profit of 18%. If his total profit was Rs....
The difference between the cost price and sale price of an article is Rs.450 and the profit is 25%. Find the selling price.
Marked price of an article is Rs.320 more than its cost price. If profit earned is equal to the discount given then find the profit earned?
- A dealer grants a 35% discount on the marked price of a furniture item. After giving the discount, he gains a profit of 30%. If his profit is Rs. 900, what...
A trader sells an item at a profit of 20%. If he had bought it for 10% less and sold it for Rs 30 less than his original selling price, his profit would...
A shopkeeper bought article ‘A’ for Rs. ‘x’ and marked it 25% above its cost price and sold it for Rs. 2600. Marked price of article ‘B’ is ...
10% of a product's cost price is Rs.1245.80. What would be the selling price if the product is sold at a loss of 15%? (rounded off to the nearest rupee)
Jagat Singh sold an article for ₹6,000 and incurred a loss. Had be sold it for ₹7,400, his profit would have been 2/3 of the amount of loss that he...
Relevant for Exams:
