Find the missing number to complete the given number series.
1, 9, 25, __?___, 81
A35
B49
C71
D79
Ans 2:
Class : Class 6
the correct answer is b 49 all are odd numbers / or 9-1=8, 8x2=16 16 9=25 8x3=24 , 24 25=49 is the second rule of the pattern the pattern can will continue in the same way if required the multiple of 8 increases by one every time,add the multiple of 8 to the previous number to get the number after . hence the answer is 49 option b
Ans 4:
Class : Class 7
all are odd i e - 1 multiply by 1 is 1, 3 multiply by 3 is 9, 5 multiply by 5 is 25,7 multiply by 7 is 49 and 9 multiply by 9 is 81