Which of these are not irrational number?
  • $\sqrt{2}$
  • $\sqrt{12}\times \sqrt{3}$
  • $\sqrt{5}$
  • $\sqrt{1000}$
which of these are not true?
  • Sum of rational number and irrational number is irrational number
  • Product of two irrational no can be rational or irrational
  • Product of rational no except 0 and irrational no is always irrational number.
  • None of these
The decimal expression for $\sqrt{5}$?
  • Non terminating repeating
  • Non terminating non-repeating
  • finite decimal
  • None of these
if $ 3^2\cdot 3^6= (3^y)^2$ ,then what is the value of y
  • 4
  • 3
  • 2
  • 1
How is rational number $ .47474747..$ can be represented in the form $\frac{p}{q}$?
  • $ \frac{23}{45}$
  • $ \frac{47}{99}$
  • $\frac{43}{80}$
  • None of these
two statement Statement A: There are many irrational number between two rational number Statement B: There are many rational number between two irrational number
  • A is correct only
  • B is correct only
  • A and B both are correct
  • A and B both are incorrect
Arrange these number in ascending order? $\sqrt[6]{6},\sqrt[3]{7},\sqrt[4]{8}$
  • $\sqrt[6]{6}<\sqrt[3]{7}<\sqrt[4]{8}$
  • $\sqrt[6]{6}<\sqrt[4]{8}<\sqrt[3]{7}$
  • $\sqrt[4]{8}<\sqrt[3]{7}<\sqrt[6]{6}$
  • None of these
which of the following is irrational number?
  • .67644
  • .67467476476476...
  • .555555555...
  • .76476
Observe the following factor tree and answer the following: What is the value of a?
class10-maths-real-numbers-1.png
  • 3
  • 11
  • 13
  • 7
What is the value of b?
  • 3
  • 11
  • 13
  • 7
What is the value of c?
  • 23
  • 11
  • 13
  • 7
For any positive integer n, n3 – n is always divisible by
  • 6
  • 5
  • 4
  • 9
If HCF (34, 221) = 17, then LCM (34, 221) =?
  • 516
  • 442
  • 316
  • 352
The decimal expansion of the rational number $\frac {1132}{2  \times 5^3}$ will terminate after
  • one decimal place
  • two decimal places
  • three decimal places
  • more than 3 decimal places
If 3 is the least prime factor of number a and 7 is the least prime factor of numbers b, then the least prime factor of a + b, is.
  • 2
  • 3
  • 5
  • 7
The largest number which divides 70 and 125, leaving remainders 5 and 8, respectively, is
  • 13
  • 65
  • 875
  • 1750
Three Rice sellers have 312kg, 260kg, and 156kg of Rice respectively. Find the maximum capacity of a bag so that the Rice can be packed in an exact number of bags.
  • 56 kg
  • 72 kg
  • 60 kg
  • 52 kg
which of the following is not a irrational number
  • $1 + \sqrt 5$
  • $1 - \sqrt 5$
  • $(1 + \sqrt 5)(1 - \sqrt 5)$
  • None of the above
0 h : 0 m : 1 s

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