Question

find the missing term in the series given below
12,31,23,42,34,?,45,64,56,75​

Answer 1

The numbers are going in sequence.

First no. is 12 and reverse of 12 is 21.

Then we will add 11 to the 1st no.

So it will become 23.

And reverse of 23 is 32.

This will go on.

We have to find the seventh no.

So as per the sequence we will add 11 to the 5th no. and it will become 45.

So the next no. is = 45.

There is an another method also. :-

If you notice the nos., you will find that if we add 2 to the second no., we will get 3rd no. and if we add 2 to the 4th no., we will get 5th no.

So, as per the sequence we will add 2 to the 6th no.

Therefore 43 + 2 = 45.

Hence the answer is 45.

Thank you.

Answer 2

Answer:

The missing term in the pattern series will be $53$.

Step-by-step explanation:

On carefully observing the first five terms of the given series, we can say that the pattern of adding $19$ to the initial term followed by subtracting $8$ from the result of the addition,

This is proven by finding the difference of the first two terms and then the difference of the second and the third term,

Now, to find the missing term, $x$, we add $19$ to the previous term:

$x=34+19$

$x=53$