Finding Speed of Train and Car Video Explanation Question Ramesh travels 760 km partly by train and partly by car. He takes 8 hours if he travels 160 km by train and the rest by car. He takes 12 minutes more if he travels 240 km by train and the rest by car. Find the […]

Finding Speed of Stream (Pair of Linear Equations Method) Video Explanation Question A person rows at 5 km/h in still water. He takes three times as long to go 40 km upstream as to go 40 km downstream. Find the speed of the stream. Solution Step 1: Concept Time = Distance / Speed Step 2:

Finding Distance and Speed (Linear Equation Method) Video Explanation Question A man walks a certain distance with a certain speed. If he walks \( \frac{1}{2} \) km/h faster, he takes 1 hour less. If he walks 1 km/h slower, he takes 3 hours more. Find the distance and original speed. Solution Step 1: Concept Time

Finding Speed of Boat and Stream Video Explanation Question A boat goes 24 km upstream and 28 km downstream in 6 hours. It goes 30 km upstream and 21 km downstream in \(6\frac{1}{2}\) hours. Find the speed of the boat in still water and the speed of the stream. Solution Step 1: Concept Used Time

Finding Speed of Boat and Stream Video Explanation Question A boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours, it can go 40 km upstream and 55 km downstream. Find the speed of the boat in still water and the speed of the stream. Solution Step 1: Let the

Finding Speed of Boat in Still Water and Current Video Explanation Question A sailor goes 8 km downstream in 40 minutes and returns in 1 hour. Find the speed of the sailor in still water and the speed of the current. Solution Step 1: Let the Variables Let speed of boat in still water =

Finding the Age of the Father Video Explanation Question The age of the father is twice the sum of the ages of his two children. After 20 years, his age will be equal to the sum of the ages of his children. Find the present age of the father. Solution Step 1: Let the Variables

Finding the Present Ages of Salim and His Daughter Video Explanation Question Two years ago, Salim was three times as old as his daughter. Six years later, he will be four years older than twice her age. Find their present ages. Solution Step 1: Let the Variables Let present age of Salim = \(x\) years

Finding the Ages of Ani and Biju Video Explanation Question The ages of two friends Ani and Biju differ by 3 years. Ani’s father Dharam is twice as old as Ani. Biju is twice as old as his sister Cathy. The ages of Cathy and Dharam differ by 30 years. Find the ages of Ani