# SSC GD MATHS QUIZ

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## Question 1:

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?

## Question 2:

Prakash can row a distance of 1250 meters in still water by boat in 10 minutes. He takes twice the time to row the boat against the stream than in the downstream. Find the speed of the stream.

## Question 3:

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 4:

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 5:

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 6:

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 7:

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 8:

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 9:

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 10:

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.