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Let the present ages of Rahul and Ritesh are 7x years and 3x years respectively. Age of Ritesh three years ago = 3x – 3 years Age of Ramesh three years ago = 3 × (3x – 3) = 9x – 9 years Present age of Ramesh = 9x – 9 + 3 = 9x – 6 years According to question: 9x – 6 – 7x = 6 2x = 12 x = 6 So, the present ages of Rahul, Ritesh and Ramesh are 42 years, 18 years and 48, years respectively. Present average age of Rahul, Ritesh and Ramesh = (42 + 18 + 48)/3 = 36 years
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Find the total distance covered by boat in each upstream and downstream in 6 hours if the speed of boat in still water and speed of current is 20 km/h ...
Speed of a boat in still water is 48 km/h and the speed of stream is 25% of the speed of boat in still water. If the time taken by boat to cover a dista...
What is the difference between the mode and the meaning of the observations?
2,3,4, 5, 6, 7, 8, 12, 9, 12, 5, 12
The speed of a boat in still water is 30 km/hr. If the boat covers 240 km in upstream in 12 hours, then find the time taken by the boat to travel 140 km...
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 48 minutes to cover 24 km in downstream, then find th...
The speed of boat downstream and upstream is 26 km/hr and 22 km/hr respectively. Time taken to travel a distance of (p + 45) km downstream and (q + 30) ...
