SSC CGL QUANT REVISION BOOSTER(LCM & HCF) QUIZ

Question 1:

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

125

1500

305

50

Question 2:

The LCM of two positive numbers is 28 times their HCF. If their HCF is 5 and the difference between the numbers is 15 , then the sum of the two numbers is:

55

45

50

65

Question 3:

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 4:

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 5:

The LCM of two prime numbers $x$ and $y$ (where $x>y$ is) is 253. What is the difference between the numbers $x$ and $y$?

$11$

$14$

$12$

$16$

Question 6:

The LCM and HCF of two numbers are 60 and 5 respectively. If dividing the first number by 2 gives the quotient 10, then find the second number.

30

15

12

20

Question 7:

The LCM of two numbers is 12 times their HCF. If one of the numbers is 15 and the sum of the HCF and LCM is 65 , then find the other number.

25

20

30

42

Question 8:

The HCF of two 4-digit numbers is 103 and their LCM is 19261 . What is the sum of the two numbers?

3090

2678

2884

2781

Question 9:

The HCF of 552,759 and 828 is x. The value of x lies between:

55 and 60

60 and 65

65 and 70

70 and 75

Question 10:

Sheena owned 4 plants on which fresh flowers come every 2nd, 3rd, 4th and 6th day, respectively. If on Tuesday, fresh flowers came on all the four plants, then on which day will fresh flowers come on all the four plants at the earliest?

Tuesday

Sunday

Monday

Thursday