(343 x 49)/ (216 x 16 x 81) = ?

A 7⁵/6⁷

B 7⁵/6⁸

C 7⁴/6⁸

D 7⁶/6⁷

E None of these.

Solution

Correct Answer: Option A

প্রদত্ত রাশি
=(343 x 49)/ (216 x 16 x 81)

= (7³ x 7²)/(6³ x 2⁴ x 3⁴)

= {7⁽³ ⁺ ²⁾} / {6³ x (2 x 3)⁴}

= 7⁵ / (6³  x 6⁴)

=  7⁵ / 6⁽³ ⁺ ⁴⁾

= 7⁵ / 6⁷

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