SSC GD MATHS QUIZ

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Question 1:

If the speed of stream is 20% of the speed of boat in still water and it covers 120km upstream in 150 minutes , then what is the downstream speed of boat ?

Question 2:

Ratio between speed of boat in still water to speed of stream is $7: 3$. In downstream, boat can cover $180 \mathrm{~km}$ in 4 hours, then find the difference between speed of boat in still water and speed of stream.

Question 3:

A man covers a certain distance in Downstream and come back to starting point in Upstream and takes total 32 hours . If speed of man in still water is 8 km/h and speed of current is 5 km/h then find the distance between both point .

Question 4:

A motor boat has speed $30 \mathrm{~km} / \mathrm{h}$ in still water. It goes $60 \mathrm{~km}$ down stream and comes back in $\frac{9}{2}$ h. What is the speed of the stream?

Question 5:

A man can row $30 \mathrm{~km}$ upstream in 6 hours. If the speed of the man in still water is $6 \mathrm{~km} / \mathrm{hr}$, find how much he can row downstream in 5 hours.

Question 6:

A person rows upstream a distance of $65 \mathrm{~km}$ in 5 hours and rows downstream a distance of $57 \mathrm{~km}$ in 3 hours. How much time will he take to row a distance of $72 \mathrm{~km}$ in still water?

Question 7:

Down stream speed of boat is $14 \mathrm{~km} / \mathrm{h}$. Upstream speed of boat is $10 \mathrm{~km} / \mathrm{h}$. In how much time can it cover $72 \mathrm{~km}$ in still water?

Question 8:

A boat can cover a distance of $72 \mathrm{~km}$ downstream and $32 \mathrm{~km}$ upstream in 20 hours. It can also cover $15 \mathrm{~km}$ downstream and 6 km upstream in 4 hours. What is the speed of boat when going downstream (in $\mathrm{km} / \mathrm{h}$ )?

Question 9:

vikrant can row a boat $24 \mathrm{~km}$ upstream in 1 hour 12 minutes. If the speed of the current of the river is $1.5 \mathrm{~km} / \mathrm{h}$, then how much time will he take to row the boat $57.5 \mathrm{~km}$ downstream?

Question 10:

Speed of a boat along the current and against the current are $10 \mathrm{~km} / \mathrm{hr}$ and $8 \mathrm{~km} / \mathrm{hr}$ respectively. What is the speed of boat (in $\mathrm{km} /$ $\mathrm{hr}$ ) in still?