8
Q:

What should come in place of x in the following equation?

 x128 = 162x

A) 13 B) 12
C) 17 D) 16

Answer:   B) 12



Explanation:

x128 = 162x

 

Then x2 = 162x128

  

   = Sqrt of 82 x 62 x 32

 

   = 8 x 6 x 3

 

   x2  = 144.

 

 x  = 12.

Subject: Square Roots and Cube Roots
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Q:

What is the square root of 576?

A) 24 B) 36
C) 34 D) 26
 
Answer & Explanation Answer: A) 24

Explanation:
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0 364
Q:

The square of 11111 is

A) 1234321 B) 1223311
C) 123454321 D) 321231
 
Answer & Explanation Answer: C) 123454321

Explanation:
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1 522
Q:

The value of √0.0144 is

A) 0.12 B) 0.012
C) 1.2 D) 0.0012
 
Answer & Explanation Answer: A) 0.12

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0 562
Q:

The square root of 5776 is

A) 84 B) 76
C) 64 D) 66
 
Answer & Explanation Answer: A) 84

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0 467
Q:

Among the following which is a rational number?

 

A) 323 B) 325
C) 324 D) 326
 
Answer & Explanation Answer: B) 325

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2 1354
Q:

The square root of 27225 is

A) 165 B) 155
C) 175 D) 145
 
Answer & Explanation Answer: A) 165

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1 470
Q:

The square root of 4624 is

A) 72 B) 66
C) 64 D) 68
 
Answer & Explanation Answer: D) 68

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2 432
Q:

The square root of 3249 is

A) 63 B) 59
C) 57 D) 67
 
Answer & Explanation Answer: C) 57

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