If x/ 7 = 28/ x, what will be the value of x?

Powers and Roots Practice Test 5

Question : 25 of 31

Marks: +1, -0

x/ 7 = 28/ x

, what will be the value of x?

Solution:

x/ 7 = 28/ x

x^2= {7×7×2×2}

x = √{7×7×2×2}=14

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