anonymous
  • anonymous
A person travelling 6kmph reaches his office 15 min late.Had he travelled at 8kmph, he would have been 25 minutes early. find the distance
Mathematics
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anonymous
  • anonymous
A person travelling 6kmph reaches his office 15 min late.Had he travelled at 8kmph, he would have been 25 minutes early. find the distance
Mathematics
chestercat
  • chestercat
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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anonymous
  • anonymous
6(t+15)=d 8(t-25)=d
anonymous
  • anonymous
dude kmph and and minutes ... so need to convert ... plz solve
anonymous
  • anonymous
t+1/4 = d/6 t-5/12 = d/8

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anonymous
  • anonymous
now i assume u can solve linear eqns
anonymous
  • anonymous
Let the distance be x Speed =. ( distance / time ) Distance = speed * time 6t + 90 = 8t -200 2t = 290 T =145 t - 25 = 120 = 2 hrs 120 + 15 = 135 135/60 * 6 = d D = 13.5 km
anonymous
  • anonymous
answer is 16 km
anonymous
  • anonymous
solve plz
anonymous
  • anonymous
??
dumbcow
  • dumbcow
use him1618 equations and solve for d using either substitution or elimination t = d/6 - 1/4 -> (d/6 - 1/4) -5/12 = d/8
dumbcow
  • dumbcow
-1/4 - 5/12 = d/8 - d/6 -3/12 -5/12 = 6d/48 - 8d/48 -8/12 = -2d/48 -2/3 = -d/24 48/3 = d 16 = d
anonymous
  • anonymous
ya thanks........ :)

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