Quantitative aptitude

If x4+1/x4=322, then (2x–4)2 = ?

April 9, 2024

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If x4+1/x4=322, then (2x–4)2 = ?

If x⁴+1/x⁴=322, then (2x–4)2 = ?

(a) 14

(b) 20

(c) 16

(d) 24

Sol:

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If x4+1/x4=322, then (2x–4)2 = ?

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The tops of two poles of height 80 m and 45 m are connected by a rope. If the rope makes an angle with the horizontal whose tangent is 5/9

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A runs 4/3rd as fast as B and gives him a head start of 37 m in a race. How long is the race in terms of distance so that A and B finish in a dead heat

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