Question : The speed of a boat in still water is $5 \frac{1}{3} \mathrm{~km} / \mathrm{hr}$. It is found that the boat takes thrice as much time to row up as it does to row down the same distance in the river stream. Find the speed of the river stream.

Option 1: $\frac{23}{27}$ m/sec

Option 2: $\frac{22}{27}$ m/sec

Option 3: $\frac{20}{27}$ m/sec

Option 4: $\frac{19}{27}$ m/sec

Question : A man can row 10 km/hr in still water. When the river is running at a speed of 4.5 km/hr, then it takes him 2 hours to row to a place and comes back to the initial point. How far is the place (in km) (rounded off to two decimal places)?

Option 1: 5.50

Option 2: 8.98

Option 3: 7.98

Option 4: 6.25

Question : Rubi goes to a multiplex at a speed of 3 km/h to see a movie and reaches 5 minutes late. If she travels at the speed of 4 km/h she reaches 5 minutes early, then the distance of the multiplex from her starting point is:

Option 1: 2 km

Option 2: 5 km

Option 3: 2 metres

Option 4: 5 metres

Question : A man is walking at a speed of 14 km/h. After every km, he takes a rest for 7 minutes. How much time will he take to cover a distance of 7 km?

Option 1: $1 \frac{1}{5}$ hours

Option 2: $2 \frac{1}{3}$ hours

Option 3: $1 \frac{1}{3}$ hours

Option 4: $\frac{1}{5}$ hours

Question : A car moving in the morning fog passes a man walking at 4 km/hr in the same direction. The man can see the car for 3 minutes and visibility is up to a distance of 130 m. The speed of the car is:

Option 1: $7\frac{3}{5}$ km/hr

Option 2: $6\frac{3}{5}$km/hr

Option 3: $7$ km/hr

Option 4: $5$ km/hr