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To the nearest mile, what is the distance covered in the marathon run?

To the nearest mile, what is the distance covered in the marathon run? Correct Answer 26

ধরি, একক স্থানীয় অংক = x দশক ,, ,, = y ∴ সংখ্যাটি = 10 y + x প্রশ্নমতে, 56(10  y  + x)  = 10x  + y ⇒ 50y  +  5x  = 60x  +  6y ⇒44y  = 55x ⇒ y  =   5544x ........ .. (i)  আবার, y – x = 1 ⇒ 5544 x – x = 1 [ (i) নং হতে] ⇒55x  -  44x44 = 1 ⇒11x = 44 ⇒ x = 4 ∴ y – 4 = 1 ⇒ y 5 ∴ সংখ্যাটি হলো : 54।

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