Question

a bus is moving at an average speed of 50 by 2/5 km / h. How much distance will it cover in 3 by 1/2 h ?​

Answer 1

Answer:

Distance travelled by bus = $\sf{\dfrac{72}{5}km\:or\:14.4km}$

Step-by-step explanation:

Given :

Speed of the bus = $\sf{50\dfrac{2}{5}km/hr}$

Time = $\sf{3\dfrac{1}{2}hr}$

To find :

The distance travelled by the bus

Formulas -:

▪︎$\boxed{\sf{D=\dfrac{S}{T}}}$

▪︎$\boxed{\sf{T=\dfrac{D}{S}}}$

▪︎$\boxed{\sf{S=D\times T}}$

Where,

D = Distance

T = Time

S = Speed

Concept :

So , we have to find the distance . So , we will take the distance formula .

Solution :

$:\implies\sf{D=\dfrac{50\dfrac{2}{5}km/hr}{3\dfrac{1}{2}hr}}$

Convert the mixed fraction into improper fraction

$:\implies\sf{D=\dfrac{\dfrac{252}{5}km/hr}{\dfrac{7}{2}hr}}$

$:\implies\sf{D=\dfrac{252}{5}km/hr\div\dfrac{7}{2}hr}$

$:\implies\sf{D=\dfrac{\cancel{252}}{5}km/hr\times\dfrac{2}{\cancel{7}}hr}$

$:\implies\sf{D=\dfrac{72}{5}km\:or\:14.4km}$

So , the distance travelled by bus is $\sf{\dfrac{72}{5}km\:or\:14.4km}$