Powers and Roots Practice Test 4

Question : 22 of 40

Marks: +1, -0

If x is a perfect square integer such that 7 < (2x - 3) < 17, then the value of x is:

Solution:

x is a perfect square integer such that

7 < (2x-3) < 17

......(i)
Adding 3 in equation (i),

7 + 3 < 2 x < 17 + 3

10 < 2 x < 20

Dividing the above equation by 2 we get,

5 < x < 10

So, the value of x = 9 is a perfect square integer.

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