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?
Created: 6 years ago |
Updated: 3 years ago
best des
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
Md Azizur Rahman
Founder of Satt
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