DELHI POLICE MATHS QUIZ

Question 1:

The ratio of two positive numbers is 11: 13 and their HCF is 4 . What will be their least common multiple (LCM)?

571

572

562

573

Question 2:

The HCF of 319, 435 and 667 is x. The value of x lies between:

25 and 30

35 and 40

30 and 35

20 and 25

Question 3:

Find the sum of the LCM and HCF of the numbers 15,20,25 and 30 .

125

1500

305

50

Question 4:

The LCM of two numbers is 56 times their HCF, with the sum of their HCF and LCM being 1710 . If one of the two numbers is 240 , then what is the other number?

57

171

1680

210

Question 5:

If $(x-3)$ is the HCF of $x^2+m x+12$ and $x^2-5 x+6$, then What is the value of $\mathrm{m}$ ?

2

$-2$

$-1$

$-7$

Question 6:

Find the HCF of $\frac{4}{25}, \frac{8}{35}$ and $\frac{22}{40}$ ?

$\frac{1}{700}$

$\frac{5}{1400}$

$\frac{3}{1400}$

$\frac{1}{2800}$

Question 7:

The smallest number which when divided by 8 and 14 leaves remainders 5 and 11 , respectively, is:

77

53

47

45

Question 8:

The LCM and HCF of two numbers are 210 and 5 , respectively. If one of the numbers is 30 , then what is the other number?

42

190

30

35

Question 9:

Three numbers are in the ratio 4 : 3 : 7 and their HCF is 6. What will be the sum of these three numbers?

98

84

42

56

Question 10:

Find the highest common factor of 306, 204 and 136.

36

46

34

48