Apititude Quiz 1

Find the LCM of 24,30,54

• 1081

• 108

• 1080

• 1088

Find the HCF of 2923, 3239

• 70

• 76

• 73

• 79

The mean of 40 observations was 46. Later on it was found that an observation 38 was wrongly taken as 33. find the corrected value of mean.

• 40.23

• 42.36

• 46.12

• 51.23

Find the average of the numbers 10,20,30,40,50,60

• 35

• 32

• 40

• 45

The value of 1/4 of 1/3 of 2/5 of 450 is-----

• 15

• 20

• 10

• 25

Which one is not a prime number?

• 31

• 61

• 71

• 91

2+2+2x((4)(4)-(8)(2))+2+2+2=?

• 16

• 8

• 10

• 0

Which number is a factor of 21

• 8

• 9

• 6

• 3

Which number is a factor of 40

• 3

• 9

• 6

• 4

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5