What is the next number of this series 97 88 72 51 26 ?

Answer 1

Best Answer - Chosen by Voters

The next term of the series in the problem is 10

EXPLANATION:

Adding the square of the tens digit with the units digit of a given term of the sequence gives the succeeding term of the sequence.
Thus, we observe that:

97 = 97

9^2 + 7 = 88

8^2 +8 = 72

7^2 + 2 = 51

5^2 + 1 = 26

2^2 + 6 = 10

Consequently, the next term of the series in the problem is 10.

Answer 2

17?

Answer 3

4.

Source(s):

Just a guess.

Answer 4

20? just guessing

Answer 5

-3

Source(s):

wala lang..
konting utak lang!

Answer 6

-3

The differences between 97, 88, 72, 51, 26 are 9, 16, 21, 25 (First Differential);

The differences between 9, 16, 21, 25 are 7, 5, 4 (Second Differential);

The differences between 7, 5, 4 are 2, 1, respectively (Third Differential).

Thus the next level should be 0 in Third Differential, thus giving 4 in Second Differential, thus giving 29 in First Differential, thus giving (-3, i.e., 26 - 29 = -3)

Answer 7

-10

Answer 8

-3

Answer 9

-3

Answer 10

I think its -10.

Answer 11

-3

Answer 12

i think its -3

Source(s):

just a guess

Answer 13

It is -10.

Answer 14

-3 is the correct answer of this question

Answer 15

To days Question

what is the next number of this series 97 88 72 51 26 ?

Previous day Question

What is the next number of this serious . 98 88 72 51 26 ....?

Can you see the difference between the questions?

In my poinion, you are misusing the good facilities granted by " YAHOO ".

Anyway Pl. don't repeat this sort of things.

Answer 16

probably -10