The sum of 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 without actual calculation is :
100
121
144
150
The area of a square playground in a school premises is 1024 m2. Find the length of side of the play ground .
30
31
32
33
( 0.05 ) 2 = ________
0.0025
0.025
0.00025
0.000025
Which of the following triplet is Pythagorean triplet
( 12, 35, 37)
( 12, 13, 4 )
( 15, 18, 26 )
( 22, 100, 102 )
Square of an odd numbers is :
Odd number
Even number
Prime number
None of these
Between the squares of numbers n and n + 1, there are exactly _______ non – perfect square numbers.
n
n2
2n
n3
Which of the following is not a perfect square.
225
400
130
Using the identity ( a – b ) 2 = a2 – 2ab + b2 , Find the square of 38.
Which of the given number is a perfect square ?
8
50
60
Write the Pythagorean triplet whose smallest number is 14.
( 14, 35, 36 )
( 14, 35, 37 )
( 14 , 49, 50 )
( 14, 48, 50 )
