Question
A Swimmer Walks 45km along the river's flow in 3 hours
45 minutes and walks 15km against the flow in 2 hours 30min. Find the speed of the boat in Still Water and the Speed of flow.Solution
Let the speed of boat in still water =B and speed of stream =S then – ATQ- 
B-S =6            … (2) Solving (1) +(2) 2B =18 B=9km/h and S=3km/h.
20.22 × 11.99 + 140.15 = ?
Amit and Bheem can individually finish a task in 10 days and 15 days, respectively. If they work together to complete the task an...
In a village election, 300 votes were declared invalid. The winning candidate secured 60% of the valid votes and won by a margin of 1,500 votes. Find th...
(74.93% of 640.11 + 3/4 of 359.79)² - (1/3 of 80.87 × 2)² = ?
[(120.96 × 12.09) ÷ ?] ÷ 6 = 19.96% of 55.07
620.15 + 1279.98 + ? × (4.79)2 = 149.95% of 1600.14
(8.86)² × (15.01)² ÷ √624.99 = 9?
(√360.99 + 161.14) ÷ 5 × 249.98 = ?
420.11 ÷ 13.98 × 5.14 – 124.9 = √?Â
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