Quiz Discussion

Given $\sqrt 2 = 1.414.$   Then the value of $\sqrt 8$  + $2\sqrt {32}$  -  $3\sqrt {128}$  + $4\sqrt {50}$   is = ?

• 1] 8.426
• 2] 8.484
• 3] 8.526
• 4] 8.876

Which of the following is closest to $\sqrt 3 = ?$

• 1]

  1.69

• 2]

  173/100

• 3]

  1.75

• 4]

  9/5

If √x+x/y  = x√x/y  where x and y are positive real numbers, then y is equal to ?

• 1]

  x + 1

• 2]

  x - 1

• 3]

  x² + 1

• 4]

  x² - 1

What percentage of the numbers from 1 to 50 have squares that end in the digit 1 ?

• 1] 1%
• 2] 5%
• 3] 10%
• 4] 11%
• 5] 20%

$\sqrt {0.2} = ?$

• 1] 0.02
• 2] 0.2
• 3] 0.447
• 4] 0.632