CBSE  /  Class 9  /  Maths  /  Number Systems

  • 1. 
    The sum of 0.\(\bar{3}\) and 0.\(\bar{2}\) is

  • \(\frac{5}{99}\)
  • \(\frac{5}{9}\)
  • \(\frac{5}{10}\)
  • \(\frac{5}{100}\)

  • 2. 
    √a + √b) (√a - √b) is

  • a + b
  • a - b
  • 2√a
  • 2√b

  • 3. 
    \(\sqrt{12}\) × √8 is equal to

  • 2√6
  • 3√6
  • 4√6
  • 6√6

  • 4. 
    Find the value of \(\frac{2^0+7^0}{5^0}\)

  • 2
  • 0
  • \(\frac{9}{5}\)
  • \(\frac{1}{5}\)

  • 5. 
    A rational number lying between √2 and √3 is

  • \(\frac{√2+√3}{2}\)
  • √6
  • 1.6
  • 1.9

  • 6. 
    The rational number between -\(\frac{1}{5}\) and -\)\frac{2}{5}\) is

  • 4
  • -\(\frac{1}{4}\)
  • -\(\frac{3}{10}\)
  • -\(\frac{7}{25}\)

  • 7. 
    If 8x = \(\frac{64}{2^x}\) then find the value of x.

  • 3
  • \(\frac{1}{3}\)
  • 9
  • \(\frac{1}{9}\)

  • 8. 
    If x1/12 = 491/24 then find the value of x.

  • 49
  • 2
  • 12
  • 7
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