48
Q:

# The cube root of .000216 is:

 A) .6 B) .06 C) 77 D) 87

Explanation:

$.00021613=21610613=6*6*6102*102*10213=6102=0.06$

Q:

Cube root of 729 then square it

 A) 9 B) 36 C) 81 D) 144

Explanation:

729 = 9 x 9 x 9

=> Cube root of 729 = 9

Now, required square of 9 = 9 x 9 = 81.

0 235
Q:

If (89)2 is added to the square of a number, the answer so obtained is 16202. What is the (1/26) of that number?

 A) 5.65 B) 2.7 C) 3.5 D) 6.66

Explanation:

Let the number is = x

(89)2 + x2 = 16202

x2 = 8281

x = 91

=> (1/26) of 91 = 3.5

11 1063
Q:

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

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

Explanation:

Then x2 = $162x128$

= Sqrt of 82 x 62 x 32

= 8 x 6 x 3

x2  = 144.

x  = 12.

5 619
Q:

Find the value of $1.21x0.91.1x0.11$?

 A) 0 B) 1 C) 3 D) 5

Explanation:

Given   $1.21x0.91.1x0.11$

$1.21x100x0.9x101.1x10x0.11x100$

$9$

= 3.

6 944
Q:

If  then find the value of $x3-6x2+6x$ ?

 A) 1 B) 2 C) 3 D) 4

Explanation:

Given that

So x - 2 =

Now cubing on both sides, we get

=>

Therefore,

5 777
Q:

If

 A) 3/4 B) 4/3 C) 3/5 D) 5/3

Explanation:

By simplifying, we get 4/3

3 1179
Q:

If x =

 A) 3sqrt{3} B) 8sqrt{3} C) 14 D) 14+8sqrt{3}

Explanation: