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194 From two places, 60 km apart A andB start towards each other at thesame time and meet each other af-ter 6 hours. If A travelled with ofhis speed and B travelled withdouble of his speed they wouldhave met after 5 hours. The speedof A is |
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Answer» A to B 60kmLet the speed of A= x kmph and that of B = y kmph; According to the question;X*6+y*6 = 60Or, x+y = 10 --------- (i) And, {(2x/3)*5}+(2y*5) = 60 Or, 10x+30y = 180; Or, x+3y = 18; ---------- (ii) From equation (i)*3 - (ii) 3x+3y-x-3y = 30-18Or, 2x = 12 Hence, x = 6 kmph Like my answer if you find it useful! |
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