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Let the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 7.5x km/hr Upstream speed of the boat = 7.5x – x = 6.5x km/hr Downstream speed of the boat = x + 7.5x = 8.5x km/hr According to the question, 8.5x – 6.5x = 40 => 2x = 40 => x = 20 Therefore, upstream speed of the boat = 6.5x = 130 km/hr Required time taken = 260/130 = 2 hours
The ratio of the income and savings of Michael is 6:2, respectively. If his expenditure increases by an amount which is equal to 25% of his initial savi...
Mohit’s salary is ₹15,000 per month. He spends ₹5,000 on house rent, ₹2,000 on bills, and the rest of the amount is his monthly savings. Find hi...
The ratio of income of 'X' to that of 'Y' is 5:6. Sum of their expenditures is Rs. 80,000. Savings of 'X' is 30% more than that of 'Y'. Expenditure of '...
Rohit allocates his monthly salary in different proportions: 15% on traveling, 20% on entertainment, 22% on studies, and 26% on food. The remainder is d...
Pankaj saves 33.33% of his monthly Income. If monthly Expenses of Pankaj is increased by 25% with respect to his previous monthly expenses, then his mon...
The sum of the original incomes of ‘Atul’ and ‘Bineet’ is Rs. 82000. If the income of ‘Atul’ had been 26000 more, then his income would ha...
The monthly incomes of Rahul, Sanjay, and Vikram are in the ratio of 3:5:4, while their monthly expenditures are in the ratio of 6:5:7. Rahul earns Rs. ...
Neha spends 60% of her monthly income. If her monthly income increased by 35% and her expenditure remained the same, then she would be able to save Rs. ...
