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Start learning 50% faster. Sign in nowLet speed of the boat in still water be ‘3x’ km/h. Speed of the boat in upstream = 3x ÷ 3 = ‘x’ km/h Speed of the stream = 3x – x = ‘2x’ km/h Speed of the boat in downstream = 3x + 2x = ‘5x’ km/h ATQ; (15/40) × 60 = 22.5 So, 5x = 22.5 Or, x = 4.5 So, speed of the boat in still water = 3 × 4.5 = 13.5 km/h
A sold a toy to B at a profit of 15%. Later, B sold it back to A at a profit of 20%, thereby gaining Rs. 575. How much did A pay for the toy originally?
The difference between the cost price and sale price of an article is Rs.600 and the profit is 30%. Find the selling price.
A shopkeeper purchased an article for Rs. ‘a’ and marked it 135% above its cost price and sold it after giving two successive discounts of 200 and 2...
The cost of a taxi ride from Ahmedabad to Surat is Rs. 600 per person. The bus fare for one person on the same route is one-seventh of the total taxi fa...
A shopkeeper sold an article at the profit of 15% and also while weighing used a weight of 920 gms. in place of 1 kg. Find out his actual total profit%?
If the cost price of 5 items is equal to the selling price of 8 items, then what will be the profit or loss percentage?
The ratio of cost prices of two articles ‘A’ and ‘B’ is 5:1 respectively and the average cost price of articles ‘A’ and ‘B’ is Rs. 1200....
