MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Multiplication and Division of Rational Numbers

A train trave...

Question

Question 115
A train travels $\frac{1445}{2}$ km in $\frac{17}{2}$ h. Find the speed of the train in km/h.

Open in App

Solution

Here, distance travelled by train $= \frac{1445}{2}$ km
Time taken by train $= \frac{17}{2} h$
$∵$ Speed of train $= \frac{D i s t a n c e t r a v e l l e d b y t r a i n}{T i m e t a k e n b y t r a i n}$
$= \frac{\frac{1445}{2}}{\frac{17}{2}} = \frac{1445}{2} \times \frac{2}{17} k m / h$
$= 85 k m / h$
Hence, the speed of the train is 85 km/h

Suggest Corrections

thumbs-up

314

Similar questions

Q. Question 8
A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey. Find the speed of the train.

Q. Driver of a train travelling at

115 k m / h

sees on a same track,

100 m

infront of him, a slow train travelling in the same direction at

25 k m / h

. The least retardation that must be appiled to faster train to avoid a collision is

Q. The driver of a train travelling at

115 k m h^{- 1}

seen on the same track,

100 m

in front of him, a slow train travelling in the same direction at

25 k m h^{- 1}

. The least retardation that must be applied to faster train to avoid a collision is

Q. A train travels from Agra to Delhi with a constant speed of

50 k m h^{- 1}

and returns from Delhi to Agra with a constant speed of

40 k m h^{- 1}

. Find the average speed of the train.

Q. A train travels 700 metres in 35 seconds. What is its speed in

\frac{k m}{h}

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Multiplication and Division of Rational Numbers

Standard VII Mathematics

Join BYJU'S Learning Program

CrossIcon