SSC CGL MATHS QUIZ

Question 1:

If the LCM of four distinct numbers is 270 and the HCF of each pair is 9 , then what is the product of the four numbers?

270

196830

200605

2430

Question 2:

If the HCF of 273,312 and 351 is $x$, then the value of $x$ will be between .

25 and 30

35 and 40

40 and 45

30 and 35

Question 3:

The product of two numbers is 19440 and their HCF is 18. Find the possible number of such number pairs.

2

4

3

1

Question 4:

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 5:

When a number is divided by $2,3,4,5$ and 6, the remainder is 1 in each case. If this number lies between 500 and 600, then what will be the sum of the digits of the number?

9

11

10

13

Question 6:

Find the least number of five digits which is exactly divisible by 14,30 and 42 .

10220

10040

10100

10080

Question 7:

Let x be the least number between 1400 and 1800 , which when divided by 5, 6, 8, 9 and 12 , the remainder in each case is 3 . When x is divided by 11 , the remainder is:

2

1

5

3

Question 8:

Two numbers are in the ratio 7: 11. Their LCM is 385 . Then the smallest number is:

21

42

35

28

Question 9:

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 10:

The LCM and HCF of two numbers are 1920 and 4, respectively. One of the numbers is 60 . Find the other number.

128

124

88

120