Question
Which number should replace both the question marks in
the following equation? ?/432 = 243/?Solution
Let the number (?) be x x/432= 243/x x2 = 432 × 243 =216× 2×81×3 = 63×2×34×3 = 63×6×34= 64 ×34 = 184 = ((18)2)2 = (324)2 x2= 3242 x = 324
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