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Fahim and Rishad both started at the same time from point A to point B at speeds of 52 kmph and 39 kmph respectively on the same road. As soon as Fahim reaches point B, he turns back, stats toward point A on the same road, and meets Rishad on the way. How far from point B do the two of them meet, if the distance between the points is 70 km?

Fahim and Rishad both started at the same time from point A to point B at speeds of 52 kmph and 39 kmph respectively on the same road. As soon as Fahim reaches point B, he turns back, stats toward point A on the same road, and meets Rishad on the way. How far from point B do the two of them meet, if the distance between the points is 70 km? Correct Answer 10 km

ব্যাখাঃ মনে করি, B বিন্দু থেকে x কিমি দূরে তারা মিলিত হবে। প্রশ্নমতে, ( 70 + x)/52 = ( 70 - x) /39 39 (70 + x) = 52 ( 70 - x) 2730 + 39x = 3640 - 62x 39x + 52x = 3640 - 2730 91x = 910 x = 10

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