Question
If x runs are second by Rohit, y runs by Shreyas and z
runs by Virat, then x : y = y : z = 7:4. If total number of runs scored by Rohit, Shreyas and Virat is 744, the find the number of runs scored by Shreyas? ÂSolution
⇒ x : y = 7:4 = 49 : 28 ⇒ y : z = 7 : 4 = 28 : 16 ⇒ x : y : z = 49 : 28 : 16 Since total runs scored by Rohit, Shreyas and Virat = 744 ⇒ 49a + 28a + 16a = 744 ⇒ 93a = 744 ⇒ a = 744/93 = 8 Hence, Runs scored by Shreyas = 28 × 8 = 224
A man takes a total time of 5 hours to cover 36 km downstream and 18 km upstream, while the man takes the same time to cover 54 km downstream and 12 km ...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 3 kmph then what is the speed of boy in still wa...
A man can row 25/2 km an hour in still water and he finds that it takes him thrice as long to row up as to row down the river. The rate of stream is:
Speed of a boat in still water is 6 times more than the speed of stream. If boat covers 112 km in downstream in 8 hours, then find the time taken by the...
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 ...
A boat takes 3 hours  to travel 54 km downstream  and 3 hours  to travel 42 km upstream . What is the speed of the boat in still water ?
Motor boat covers a certain distance downstream in a river in 5 hours. It covers the same distance upstream in 7 and half an hour. If the speed of the w...
A boat running downstream covers a distance of 30 km in 3 hrs while it covers the same distance upstream in 5 hrs. Then speed of the boat in still water is
The time taken by a boat to travel (5p + 60) km upstream is equal to the time taken to travel (8p - 40) km downstream. Given that...
A boat can cover 150 km in downstream in 15 hours and 120 km in upstream in 12 hours. Find the distance travelled by the boat in still water in 5 hours.
Relevant for Exams:
