#### T2 - Numbers English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021

6th Standard

Reg.No. :
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Maths

Time : 00:10:00 Hrs
Total Marks : 10

Part A

10 x 1 = 10
1. The only even prime number is

(a)

4

(b)

6

(c)

2

(d)

0

2. The sum of the factors of 27 is

(a)

28

(b)

37

(c)

40

(d)

31

3. The factors of a number are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80. What is the number?

(a)

80

(b)

100

(c)

128

(d)

160

4. The prime factorisation of 60 is 2 $\times$ 2 $\times$ 3 $\times$ 5. Any other number which has the same prime factorisation as 60 is

(a)

30

(b)

120

(c)

90

(d)

impossible

5. If the number 6354 * 97 is divisible by 9, then the value * is

(a)

2

(b)

4

(c)

6

(d)

7

6. The number 87846 is divisible by

(a)

2 only

(b)

3 only

(c)

11 only

(d)

all of these

7. Which of the following pairs is co-prime?

(a)

51, 63

(b)

52, 91

(c)

71, 81

(d)

81, 99

8. The greatest 4 digit number which is exactly divisible by 8, 9 and 12 is

(a)

9999

(b)

9996

(c)

9696

(d)

9936

9. The HCF of two numbers is 2 and their LCM is 154. If the difference between the numbers is 8, then the sum is

(a)

26

(b)

36

(c)

46

(d)

56

10. Which of the following cannot be the HCF of two numbers whose LCM is 120?

(a)

60

(b)

40

(c)

80

(d)

30