Question
The ratio of present ages of A and B is 4 : 5. After 6
years, the ratio becomes 5 : 6. Find B’s present age.Solution
ATQ, Let present ages be 4x and 5x After 6 years: (4x + 6)/(5x + 6) = 5/6 6(4x + 6) = 5(5x + 6) 24x + 36 = 25x + 30 x = 6 B’s age = 5x = 30 years
- The marked price of a product is 200 percent of its cost price. If a discount of 30% is given while selling the product, what will be the profit percentage...
- A device was bought for Rs. 700 and repaired with Rs. 300. The seller then increased its price by 30% over the cost and sold it at a 10% loss. What was the...
A sold an article at 62% profit. If the profit earned had been 260% more, then the profit percentage would have been numerically equal to CP. Find the a...
A vendor vended an item at a price 40% higher than its cost. If he had set the item's price at 60% above the cost, calculate the discount percentage giv...
Ratio of the cost price of article ‘A’ to ‘B’ is 5:6, respectively. Article ‘A’ is marked up by 30% above its cost price and then sold at a ...
A shopkeeper bought an article for Rs. 250. He sold it at profit 20% after allowing a discount of 20%. If instead he had sold it at 12% discount, then f...
Manav bought a laptop and sold it at a profit of 10%. Had he bought it for Rs. 500 less and sold it for Rs. 550 more, he would have earned a profit of 5...
- The marked price of a smartphone is 210 percent of its cost price. If a discount of 35% is given at the time of selling the smartphone, what will be the pr...
- Two goods, E and F, cost Rs. 400 and Rs. 600, respectively. If E is sold at a profit of 18% and F at a loss of 10%, determine the overall profit or loss.
A vendor claims to sell sugar at cost price but uses a faulty scale that shows only 900 grams as 1 kg. What is the approximate profit percentage he earns?
Relevant for Exams:
