pick out the number which is different from other four.
a) 49 b)25 c)36 d)81 e)64
plz specify the reason.... thanks
Answer Posted / somesh
a)49
7*7=49
7 is prime number and odd number.
49 is divisible with no other number.
b)25
5*5=25
5 is prime number and odd number.
25 is divisible with no other number.
c)36
6*6=30
6 is even number.
36 is also divisible by 2,3,4,9,12.
d)81
9*9=81
9 is odd number.
81 is not divisible by no other number.
e)64
8*8=64
4*4*4=64
64 is square of 8 and cube of 4.
ans:ans is 64
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