Square Roots and Cube Roots Questions

Q:

The maximum value of 5+20x-4x2, when X is real number

A) 1 B) 5
C) 25 D) 30
 
Answer & Explanation Answer: D) 30

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1 1208
Q:

If x+1x=-2, then the value of x7+1x7

A) 1 B) -1
C) 0 D) -2
 
Answer & Explanation Answer: D) -2

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5 1201
Q:

Which of the numbers given below is the square root of 14161?

A) 119 B) 121
C) 131 D) 141
 
Answer & Explanation Answer: A) 119

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0 1199
Q:

Which of the following numbers will have an irrational square root?

A) 1024 B) 2401
C) 4096 D) 2048
 
Answer & Explanation Answer: D) 2048

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2 1172
Q:

What is the remainder, when 4x4 +10x3-20x2+90 is divided by (x+2) ?

A) 0 B) -6
C) 45 D) 90
 
Answer & Explanation Answer: B) -6

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2 1137
Q:

The cube of 105 is

A) 1157625 B) 1175625
C) 1185625 D) 1158625
 
Answer & Explanation Answer: A) 1157625

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1 1115
Q:

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

A) 3/10, 7/10 B) 1/10, 9/10
C) 2/5, 3/5 D) 1/5, 4/5
 
Answer & Explanation Answer: B) 1/10, 9/10

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4 1089
Q:

If the numbers  93, 204, 256 are arranged in ascending order, then the right arrangement is 

A) 256 < 204 < 93 B) 93 < 204 < 256
C) 204 < 256 < 93 D) 256 < 93 < 204
 
Answer & Explanation Answer: D) 256 < 93 < 204

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1 1052