Number, Ranking and Time Sequence Test Questions and Answers

Answer: C

Clearly, we may mark such sets of 3 numbers, in which the middle number is 8 and each of the two numbers on both sides of it is a factor of 8, as shown below :

2 8 3 8 2 4 8 2 4 8 6 8 2 8 2 4 8 3 8 2 8 6

So, there are two such 8's. Hence the answer is C.

Answer: C

Correct answer: 4

The sequence holds 27 numbers, so the middle one is the 14th, which is 9. Three places to its left is the 11th number, 4.

Answer: A

Here the given numbers are 

567  284  696  865  738

When 1 is added to the last digit of each of the above numbers, it becomes as follows :

568  285  697  866  739

After reversing the order of digits , we get

865  582  796  668  937

Now , when the numbers are arranged in ascending order their order becomes as follows:

582  668  796  865  937

Hence , the fourth number is 865 (a number formed by 567). Therefore option(1) is correct answer.

Answer: C

Correct answer: monday

A common year has 365 days, and \( 365 = 52 \times 7 + 1 \). The year therefore contains 52 whole weeks and one day over, so the last day falls on the same weekday as the first: Monday.

Answer: A

Correct answer: 25th and 21st

In a class of 31, a rank of \( r \) from the top is \( 31-r+1 \) from the bottom. Manoj at 7 becomes \( 31-7+1 = \mathbf{25} \)th and Satya at 11 becomes \( 31-11+1 = \mathbf{21} \)st.

Answer: B

The 2nd, 5th and 8th digits of the number 31549786 are 1, 9 and 6 respectively.

The perfect square of a two - digit even number, formed using the digits 1, 9 and 6 is 196.

And,  14 x 14 = 196 

So, the required even number is 14. Clearly, its second digit is 4.

Hence, the answer is (b).

Answer: A

There are 26 English Alphabets. They are:

A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z.

Therefore, from the left end the 13th letter is M and is Consonent. And from the right end the 13th letter is N and is Consonent.

Answer: A

Given Number :  7 6 5 3 4 2 1 8 

New Number :    8 7  6 4 5 3 2 9

Ascending Order :  2 3 4 5 6 7 8 9 

Fifth digit in the above ascending order arrangement is '6' . Hence option(1) is the correct answer.

Answer: B

Correct answer: 19

The second, fourth and sixth digits of 93217648 are 3, 1 and 6. Arranged as 361 they give \( 19^2 \), and 19 is a two-digit odd number - so the number whose square can be formed is 19.

Answer: D

Correct answer: 0

Every multiple of 9 is also a multiple of 3, since \( 9 = 3 \times 3 \). So no number whatever can be divisible by 9 and not by 3, and the count is 0.