Converting Speed from One Unit to Other Unit

Q.

54 $\frac{km}{h}$ = ___ $\frac{m}{s}$

Q.

30 $\frac{m}{s}$ = ___

1. 208 $\frac{km}{h}$

2. 108 $\frac{km}{h}$

3. 118 $\frac{km}{h}$

4. 100 $\frac{km}{h}$

Q.

15 $\frac{m}{s}$ = ___

1. 54 $\frac{km}{h}$

2. 18 $\frac{km}{h}$

3. 54 $\frac{m}{s}$

4. $\frac{75}{18}$ $\frac{km}{h}$

Q. The length of rectangular hall is $4$ meters less than $3$ times the breadth of the hall. What is the length, if the breadth is $b$ meters?

Q. A boy swims 200 m in still water and then returns back to the point of start in total 10 minutes. Find the speed of his swim in kmph.

1. 0.66 kmph
2. 2.1 kmph
3. 1.5 kmph
4. 2.4 kmph