Posted by **arjun** on Friday, December 14, 2012 at 4:20am.

a train leaves kanyakumari for warengel on tuesday at 10:30 a.m if warengel 1586 km from kanyakuri when will it reach there if its speed is 39 km/h.

- maths --plse help me.. -
**Steve**, Friday, December 14, 2012 at 5:18am
1586/39 = 40 2/3 hrs = 40 hrs 40 min

arrive 10:30 + 40:40 = 50:70 = 2d+ 3:10

so on Thur at 1:40 pm

- maths --plse help me.. -
**angel**, Friday, December 14, 2012 at 7:23am
I didn't understand after this,, plse help me to understand

arrive 10:30 + 40:40 = 50:70 = 2d+ 3:10

so on Thur at 1:40 pm

- maths --plse help me.. -
**Mac**, Friday, December 14, 2012 at 7:55am
Distance is equal to rate times time

Therefore time is equal to distance divided by rate.

1586/39= 40 2/3 hours

That means it takes 40 2/3 hours to go 1586 km when you are going 39 km per hour

So if you start at 10:30 and go for 40 and 2/3 hours, which is 40 hours and 40 mins

Start with the 40 mins that would take you to 11:10am

Now 40 hours is 4 hours less than 48 hours which is 2 days... So you are 4 hours short of 11:10am on Thursday ....so I get 6:10am

- maths --plse help me.. -
**Steve**, Friday, December 14, 2012 at 1:06pm
Looks like we both blew it.

I should have measured from midnight on Tue, making the time Thur at 3:10

Mac should have subtracted 40 from 48 and gotten 8 hours less than 2 days, making the time Thur at 3:10

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