History, asked by nitinpateriya1977, 9 months ago

a train after covering 1/4 of its total distance decreases its speed of 1/3 of its usual speed and reach destination 1 hour 20 minutes late.find usual time take by train to cover complete distance.​

Answers

Answered by za6715
8

Answer:

Train proceeds at 3/4 S where S is his usual speed means 1/4 decrease in the speed which will lead to 1/3 increase in the time.

[ As S *T = D, Speed is inversely proportional to time when distance is constant].

Now, the main difference come in those 24 km and the change in difference of time = 35 - 25 = 10 m

= 1 / 3 *T = 10 where T is the time required to cover the distance of (50 - 74) = 24 km

T = 30 min = 0.5 hours

Speed of the train = 24 / (0.5) = 48 kmph

Answered by jangidsagar945
3

Explanation:

your answer is here

ANSWER

Train proceeds at 3/4 S where S is his usual speed means 1/4 decrease in the speed which will lead to 1/3 increase in the time.

[ As S *T = D, Speed is inversely proportional to time when distance is constant].

Now, the main difference come in those 24 km and the change in difference of time = 35 - 25 = 10 m

= 1 / 3 *T = 10 where T is the time required to cover the distance of (50 - 74) = 24 km

T = 30 min = 0.5 hours

Speed of the train = 24 / (0.5) = 48 kmph.

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nitinpateriya1977: e 35 kaha aaya
nitinpateriya1977: aur 25
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