ScoreKhel Formula of Work Time (works in all Que)
or fullworkFrom an aeroplane just over a river, trees on the opposite bank of the river are found to be 60° and 30° respectively. If the breadth of the river is 400 m, then the height of the airplane above the river at an instant is
(assume √3 = 1.732)
A sum of ₹5,000 is divided into two parts such that the simple interest on the first part for \(4\frac{1}{5} \)years at \(6\frac{2} {3}\% p.a \). is double the simple interest on the second part for \( 2\frac{3}{4} \) years at 4% p.a. What is the difference between the two parts?
Watch SolutionThe speed of a boat in still water is 25 km/h. It takes \(33\frac{1}{3}\) % more time to cover a certain distance in still water than to cover the same distance downstream. How much time (in hours) will the boat take to go 75 km downstream?
Watch SolutionTwo bullets were fired at a place at an interval of 28 min 30 sec. A person approaching the firing point in his car hears the two sounds at an interval of 27 mins. The speed of sound is 330 m/s. What is the speed of car?
Watch SolutionA shopkeeper sold two articles. He sold one article at Rs.3175 and got 27% profit. He sold the other article at Rs.385 and got 23% loss. what is his overall gain or loss percent (correct to the nearest integer)?
Watch Solution