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Start learning 50% faster. Sign in nowDownstream speed of the boat = 180/9 = 20 km/hr Upstream speed of the boat = 110/11 = 10 km/hr Speed of boat in still water = (20 + 10)/2 = 15 km/hr
A and B together can complete a task in 12 days. A alone can complete the task in 20 days. In how many days can B alone complete the task?
Find the equation of the line passing through the point (3, 4) and having a slope of 2.
What is the function of the "SUM" function in Microsoft Excel?
Quantity I: Ratio of present ages of A and B is 6:7 respectively while the ratio of present ages of C and D is 8:9. Ratio of the age of B after two ye...
An inlet pipe can fill a cistern in 25 minutes when working alone. However, due to a leak, the fully filled cistern would empty in 87.5 minutes. If the ...
What type of high-performance and costly computer can process data for hundreds or thousands of users at the same time?
A person spends 40% of his income on rent, 30% on food, and 20% on education. If he saves ₹2000, what is his total income?
The height of a solid cylinder is 30 cm and the diameter of its base is 10 cm. Two identical conical holes each of radius 5 cm and height 12 cm are dril...
X has 30% more money than Y, and Z has 35% less money than Y. What percent more money does X have than Z?
