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anonymous
 one year ago
HELP PLS :'(
anonymous
 one year ago
HELP PLS :'(

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A train covered a certain distance at a uniform speed.if the train would have been 10km/h faster , it would have taken 2 hours less than the schedules time.and if the train were slower by 10km/h ; it would have taken 3 hours more than scheduled time.find the distance covered by the train

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Preetha and @pooja195 PLS HELP

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2Hi! Don't cry, let's try to solve this together c:

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2Train is travelling with uniform speed, so first thing you need to know is that when anything is travelling through constant speed then distance traversed is given by speed*time.

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2So, we can say that time taken is given by distance/speed. Got it?

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2Let the speed of train be s and distance be d. Then time taken will be d/s ........ 1 Now, if train would have been 10 km/hr faster then its speed would be (s+10) and time taken would be (T2). So we can write that d/(x+10) = T2 .......2

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2Again, if the train would have been 10km/h slower then its speed would have been (s10) and time taken would have been (T+3) So, we can write that d/(s10)=T+3

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2Now, you have 3 variables d, s and T and 3 equations. Can you solve the equations to find the value of variables?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i dont knw to solve three i only knw to solve 2

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2Ok, I'll help you. From equation 1 we know d=st. Now put this value of d in other two equations and solve the 2 equations. Can you do that?

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2\(\bf Hint\) Value of S will be 50 km/h

Abhisar
 one year ago
Best ResponseYou've already chosen the best response.2We will get following two equations, st = (T2)(s+10) st = (T+3)(s10) Simplifying both of them and then adding. dw:1439948695514:dw
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