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.
2345273849294974898399356492784
How many 8's are there which are immediately preceded by an odd number and immediately followed an even number?
Options :
A - One
B - Two
C - Three
D - Four
Answer : B
Explanation
There are only two 8's which are immediately preceded by an odd number and immediately followed by an even number. They are 384 and 784.
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Q 2 - Find the next number in the following series
20293039404950596
Options :
A - 0
B - 1
C - 7
D - 6
Answer : A
Explanation
The sequence is like: 20 29 30 39 40 49. Hence 0 will come.
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Q 3 - Find the next number in the following series
23434545656767878
Options :
A - 8
B - 9
C - 7
D - 6
Answer : B
Explanation
The sequence is like: 234 345 456 567 678 789. Hence 9 will come.
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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 :
A - 279
B - 241
C - 422
D - 533
Answer : A
Explanation
The number 279 when written in reverse order will be 972, which is the highest number.
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Look at the following numbers and answer the question
241 422 533 279 488
Q 5 - If all the digits are written in reverse order, then what will be the sum of 2nd highest and 3rd highest number?
Options :
A - 1250
B - 1290
C - 1256
D - 1219
Answer : D
Explanation
Addition of 884 and 335 is 1219.
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Look at the following numbers and answer the question
535 987 229 406 502
Q 6 - If all the digits are written in reverse order then what will be the sum of 2nd highest and 3rd highest number.
Options :
A - 1711
B - 1798
C - 1099
D - 1119
Answer : A
Explanation
Addition of 789 and 922 is 1711.
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Look at the following numbers and answer the question
471 182 293 546 734
Q 7 - If all the numbers are written in the reverse order, what will be the number formed if 2 is added to all the digits of the 2nd highest number?
Options :
A - 659
B - 624
C - 665
D - 789
Answer : A
Explanation
After writing the numbers in reverse order, the 2nd highest number is 437. If we will add 2 to all the digits then the number that will be formed is 659.
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Q 8 - Study the following series and answer the question.
23736479732894782945273849294956492784
How many 9's are there which are immediately preceded by an odd number?
Options :
A - One
B - Two
C - Three
D - Four
Answer : A
Explanation
There is only one 9 which is immediately preceded by an odd number.
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Q 9 - Study the following series and answer the question.
846453647478842345273848785676489478
Which is 30th digit from left?
Options :
A - 8
B - 3
C - 4
D - 6
Answer : D
Explanation
The 30th digit from left is 6.
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Q 10 - Study the following series and answer the question.
23452737647832748732893849294956492784
How many 9's are there which are immediately followed by an odd number?
Options :
A - One
B - Two
C - Three
D - Four
Answer : B
Explanation
There are only two 9's which are immediately followed by an odd number.
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reasoning_number_series.htm
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