Number, Ranking and Time Sequence Test - Base Level
Practice and master this topic with our carefully crafted questions.
How many '8' are followed by even number and preceded by an odd number?
184381483287848568784186
184381483287848568784186
There are four such 8's which are followed by even number and preceded by an odd number.
How many 9's are followed by and preceded by numbers divisible by 2?
89653596834965269737294137941734
98453976153195742968532957489451
8965359683496526973729413794173498
453976153195742968532957489451
In the given series, there are six 9's followed by and preceded by number divisible by 2.
How many such 5's are there in the following numbers sequence, each of which is preceded by 3 or 4 but not followed by 8 or 9?
35954553584567357554523510
There are five such 5's as shown below
3 5 9 5 4 5 5 3 5 8 4 5 6 7 3 5 7 5 5 4 5 2 3 5 1 0
If two is subtracted from each odd digit and three is added to each even digit in the number 3675249. How many digits will appear twice in the new number thus formed?
Subtract 2 from odd digits in given number and add 3 in even digits.
So, in new number there are two digits of five and two digits of seven.
The positions of how many digits in the number 837912 will remain unchanged after the digits within the number are rearranged in descending order (from left to right)?
Given number - 8 3 7 9 1 2
Descending order - 9 8 7 3 2 1
Hence, the position of only one digit, i.e. 7 remains unchanged.
How many such pairs of digits are there in the number 75938462, each of which has as many digits between them in the numbers as they have between them when arranged in ascending order?
Given number 7 5 9 3 8 4 6 2
Arrange the digits in ascending order,
Therefore, such pair = six
i.e. (7,9), (5,8), (3,6), (8,6), (5,3) and (4,2).
If the following numbers are written in ascending order then what will be the middle digit of the middle term?
815, 686, 795, 835, 765, 822, 719
Ascending order :
686, 719, 765, 795, 815, 822, 835
Middle Number
Middle digit of 795 is 9.
If all the digits of the number '6379452', are arranged in ascending order from left to right, what will be the sum of the fourth digit from the left and second digit from the right after rearrangement?
When the digits of the number '6379452' are arranged in ascending order,
then rearrangement will be 2 3 4 5 6 7 9
Now, fourth digit from the left = 5
Second digit from the right = 7
Sum of fourth and second digit = 5 + 7 = 12
In the number 76534218, each digit is replaced by the next digit i.e., '1' is replaced by '2', '2' is replaced by '3' and so on and then the digits are arranged in ascending order from left to right, which digit will be fifth from the left end?
Original number - 7 6 5 3 4 2 1 8
Hence, required digit = 6
In a given number 7834329513, we interchange the first and the second digits, the third and the fourth digit and so on. Then which digit will be sixth from the right?
Given number : 7 8 3 4 3 2 9 5 1 3
After interchanging the digits,
New number : 8 7 4 3 2 3 5 9 3 1
6th digit from right end