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2 years ago

8

Plz show how u got the answer

1 answer:

ladessa [460]2 years ago

4 0

The answer is C
Hope this helps you thanks

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Step-by-step explanation:

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A ship sailed 30 kilometers in 1 1/2 hours. What is was its rate in kilometers per hour?

PilotLPTM [1.2K]

Answer:

20km/hr

Step-by-step explanation:

Given that a ship sailed 30km in one and a half hours. We need to find out the rate of ship in kilometres/hour . The rate is also called Speed.

<u>Speed</u><u>:</u><u>-</u> Distance travelled per unit time is called Speed .

Here , according to Question,

<u>Distance</u> = 30 km

<u>Time </u> = 1½ hrs .

We know that ,

$\rm\implies Distance = Speed \times Time$

Subsequently ,

$\rm\implies Time = \dfrac{Distance}{Time}$

Substitute the respective values ,

$\rm\implies Rate =\dfrac{ 30km}{ 1.5 hrs }$

We can write 1.5 as 3/2 , therefore ,

$\rm\implies Rate = \dfrac{ 2\times 30}{3} km/hr$

Simplify the RHS ,

$\rm\implies\boxed{\blue{\rm Rate = 20\ km/hr}}$

<u>Hence</u><u> the</u><u> </u><u>Rate/</u><u>Speed </u><u>of</u><u> the</u><u> </u><u>ship </u><u>is </u><u>2</u><u>0</u><u>k</u><u>m</u><u>/</u><u>hr </u><u>.</u>

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