Real Number Quiz 7

1

Find the remainder when the square of any prime number greater than 3 is divided by 6.

2

If HCF (72, q) = 12 and q is a positive two digit number then how many values can q take?

3

Find the HCF of 120 and 156.

4

Find the HCF of 432 and 504.

5

The LCM of two numbers is 1200. Which of the following can be their HCF?

6

How many prime factors are there in the prime factorization of 240 ?

7

The largest number among $\sqrt2,\,3\sqrt3$ and $4\sqrt4$ is …………

8

The expression $(x+y)^{-1}(x^{-1}+y^{-1})$ is the reciprocal of …………

9

The greatest possible length of a scale that can be used to measure exactly 3m, 5m 40cm and 13m 80cm is .......

10

If $(x-1)^2+(y-2)^4+(z-3)^6 = 0$ then the value of xyz is …………

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