Elementary Mathematics : Number System

The square root of 289 is

• 13

• 17

• 27

• 27

Square root of 400 is

• 20

• 40

• 50

• 50

If a boy is standing at the top of the tower and another boy is at the ground at some distance from the foot of the tower, then the angle of elevation and depression between the boys when both
look at each other will be

• Angle of elevation will be greater

• Cannot be predicted for relation

• Angle of depression will be greater

• Angle of depression will be greater

What is the place (location) value of 5 in 3254710 ?

• 10000

• 5

• 54710

• 54710

If the numbers from 1 to 24, which are divisible by
2 are arranged in descending order, which number
will be at the 8th place from the bottom?

• 10

• 12

• 16

• 16

Find the factors of 330

• 2 x 4 x 5 x 11

• 2 x 3 x 7 x 13

• 2 x 3 x 5 x 13

• 2 x 3 x 5 x 13

6 x 3 (3 - 1) is equal to

• 53

• 36

• 20

• 20

Which of the following is not a prime number ?

• 23

• 43

• 29

• 29

If the product of zeroes of the polynomial ax2 - 6x - 6 is 4, find the value of 'a'

• -3/2

• -1/2

• 3/2

• 3/2

Find the factors of 1122

• 3 x 9 x 17 x 2

• 3 x 11 x 17 x 2

• 9 x 9 x 17 x 2

• 9 x 9 x 17 x 2