Quiz Discussion

The value of \({ \text{ }} \root 3 \of {\frac{{0.2 \times 0.2 \times 0.2 + 0.04 \times 0.04 \times 0.04}}{{0.4 \times 0.4 \times 0.4 + 0.08 \times 0.08 \times 0.08}}} \)        is ?

• 1] 0.125
• 2] 0.25
• 3] 0.5
• 4] 0.75

\(1728 \div \root 3 \of {262144} \times ? - 288\)      = 4491

• 1] 148
• 2] 156
• 3] 173
• 4] 177

One-fourth of the sum of prime numbers, greater than 4 but less than 16, is the square of = ?

• 1] 3
• 2] 4
• 3] 5
• 4] 7

\(\sqrt {1.5625} = ?\)

• 1] 1.05
• 2] 1.25
• 3] 1.45
• 4] 1.55

If = the value of x is = ?

• 1] 52
• 2] 58
• 3] 62
• 4] 68

The square root of (272²−128²) is

• 1]

  144

• 2]

  200

• 3]

  240

• 4]

  256

Three fifth of the square of a certain number is 126.15, What is the number?

• 1]

  210.25

• 2]

  75.69

• 3]

  14.5

• 4]

  145

\(\frac{1}{{\left( {\sqrt 9 - \sqrt 8 } \right)}} -   \frac{1}{{\left( {\sqrt 8 - \sqrt 7 } \right)}} +   \frac{1}{{\left( {\sqrt 7 - \sqrt 6 } \right)}} -   \frac{1}{{\left( {\sqrt 6 - \sqrt 5 } \right)}} +   \frac{1}{{\left( {\sqrt 5 - \sqrt 4 } \right)}}\)   is equal to ?

• 1]

  0

• 2]

  1/3

• 3]

  1

• 4]

  5

If \(3a = 4b = 6c   \)  and \(a + b + c = 27\sqrt {29} { \text{,}}   \) then\( \sqrt {{a^2} + {b^2} + {c^2}} \)is ?

• 1]

  \(3\sqrt {29} \)

• 2]

  81

• 3]

  87

• 4]

  None of these

Evaluate -

• 1]

  3

• 2]

  5

• 3]

  6

• 4]

  6.4