Question

8 , 4.5 , 5.5 ,13 , 56 , ?
a) 566
b) 496
c) 596
d) 450
e) 456

Answer 1

Option E 456 is correct.....

Mate see here for solution----

Answer 2

Given:

A series of numbers 8, 4.5, 5.5  13, 56.

To Find:

The next term in the series is?

Solution:

The given problem can be solved by developing a common logic between every term.

1. The given series is 8, 4.5, 5.5  13, 56.

2. The second term in the series is obtained as,

=> Second term = 4.5 = 8*(0.5) + 0.5, ( (First term x 1/2) + 1/2 )

3. The third term of the series is obtained as,

=>Third term = 5.5 = 4.5 x 1 + 1, ( (Second term x 1) + 1 )

4. The fourth term of the series is obtained as,

=>Fourth term = 13 = 5.5 x 2 + 2, ( (Third term x 2) + 2 )

5. The fifth term of the series is obtained as,

=>Fifth term = 56 = 13 x 4 + 4, ( (Fourth term x 4) + 4 )

6. The seventh term of the series can be obtained using similar logic,

=> Sixth term = Fifth term x 8 + 8 = 56 x 8 + 8 = 456.

Therefore, the next number in the series is 456. Option E is the correct answer.