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Distance between A and B is 150km.Two car started at same time. If they travelling in same direction and met after 15hrs. If they travelling opposite direction they met after 1hr.Find the speed of both cars.

Posted by Anurag Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Shiwan Tash 6 years, 10 months ago

x = 125 km/h______________ y = 25 km/ h

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Shiwan Tash 6 years, 10 months ago

Let suppose speed of car started from (A)= x km/h ________ speed of car started from (B)= y km/h D = S×T so, AC = x × 15 AC = 15x And,. BC = 15y AC = AB + BC 15x = 150 + 15y {AB is given the dis} x - y =10 { 1 } now,. AD = 1x BD = 1y AB = AD + DB 150 = x + y { 2 } From {1} and {2} x - y = 10 x + y = 150 _______________________ 2x = 250 x = 125 km/h { put in {2} eq } x + y = 150 125 + y = 150 y = 150 - 125 y = 25 km/h _______Answer ________

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Ranganath Gowda 6 years, 10 months ago

CarA speed=80km/h CarB speed=70km/h

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