KVS MATHEMATICS QUIZ 84

Question 1:

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 2:

What is the greatest 5-digit number which on being divided by 3, 5, 6 and 9 leaves remainders 1, 3, 4 and 7 , respectively?

99999

99990

99988

99992

Question 3:

The ratio of two positive numbers is 11: 17 and their HCF is 4. What will be their least common multiple $(\mathrm{LCM})$?

648

784

746

748

Question 4:

Find the LCM of $\frac{2}{3}, \frac{4}{7}$ and $\frac{9}{13}$.

28

12

36

15

Question 5:

H.C.F of two numbers. 35 and L.C.M is 210. If one of them is 105, then what will be the other number?

175

210

140

70

Question 6:

If $a=2 \times 3^2 \times 5, b=3^4 \times 5 \times 7, c=2^2 \times 3 \times 7$, then what is the LCM of $a$, $\mathrm{b}$ and $\mathrm{c}$ ?

3

3780

5670

11340

Question 7:

A number is three times another number and their HCF is 8 . What is the sum of the squares of the numbers?

640

512

1024

1000

Question 8:

If three numbers are in the ratio of 3: 5: 7 and their LCM is 2415 , what is the difference between the second number and the first number ?

46

92

23

69

Question 9:

Two numbers are in the ratio of 2:3. The product of their LCM and HCF is 7350 . The difference between the two numbers is

35

25

45

15

Question 10:

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

36

46

34

48