Number Series Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Number Series. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Study the following series and answer the question.

21345273849294195649127814

How many 1's are there which are immediately preceded by an even number and immediately followed by an odd number?

Options :

Answer : B

Explanation

There are only two 1's which are immediately preceded by an even number and immediately followed by an odd number.

Q 2 - Study the following series and answer the question.

547348783748938949384

How many 7's are there which are immediately preceded by an even number?

Options :

Answer : B

Explanation

There are only two 7's which are immediately preceded by an even number.

Q 3 - Find the next number in the following series

1911811711611511

Options :

Answer : C

Explanation

The sequence is like: 191 181 171 161 151 141. Hence 4 will come.

Look at the following numbers and answer the question

241 422 533 279 488

Q 4 - If the digits of all the given numbers in written in reverse order, which of them will become the highest?

Options :

Answer : A

Explanation

The number 279 when written in reverse order will be 972, which is the highest number.

Look at the following numbers and answer the question

241 422 533 279 488

Q 5 - If each number is written in reverse order, then the lowest number formed will be

Options :

Answer : B

Explanation

The number 142 is the lowest number that is formed after writing numbers in reverse order.

Look at the following numbers and answer the question

471 182 293 546 734

Q 6 - If 1 is subtracted from all the digits of 2^nd lowest number, then the number created will be.

Options :

Answer : A

Explanation

182 is the number that will be formed if 1 is subtracted from all the digits of 2^nd lowest number that is 293.

Look at the following numbers and answer the question

621 597 245 331 208

Q 7 - If all the numbers are written in reverse order, what is the sum of all the digits of 3^rd lowest number?

Options :

Answer : A

Explanation

11 will be the sum of all the digits of the 3^rd highest number.

Q 8 - Study the following series and answer the question.

253452738492949564927584

How many 5's are there which are immediately preceded by an odd number?

Options :

Answer : B

Explanation

There are only two 5's which are immediately preceded by an odd number.

Q 9 - Study the following series and answer the question.

4535346562345273848785676489478

Which is 17^th digit from left?

Options :

Answer : D

Explanation

17^th digit from left is 7.

Q 10 - Study the following series and answer the question.

73647632786478326782345273849294956492784

How many 6's are there which are immediately preceded by an odd number and followed by an even number?

Options :

Answer : B

Explanation

There are only two 6's which are immediately preceded by an odd number and followed by an even number.

reasoning_number_series.htm