Alpha-Numeric, Number, Ranking & Time Sequence Test - 5

How many such 5's are there in the given below arrangement each of which is immediately preceded as well as followed by an even digit?     (SOF NCO 2016)

9 9 2 3 2 5 9 5 8 5 8 5 4 3 1 8 1 7 4 7 6 5 2 1 2 6 1 3 2 4 6 2 4

How many such 1's are there in the given arrangement, each of which is immediately preceded by a perfect square?     (SOF NCO 2016)

6 4 1 2 5 2 8 5 2 6 4 1 3 9 1 8 1 2 5 8 6 1 3 5 1 4 9 4 7 3 2 1 7 2 5 9

This question is based on the six numbers given below :     (SOF NCO 2016)

2 7 1 3 6 1 9 1 2 7 1 4 4 5 9 1 8 7

If the first and the second digits of each number are interchanged and if the third digit of each number is placed between these two digits, then which number will be the third number from the top, if the new numbers are arranged in the descending order?

Which of the following is the twelfth to the left of the twenty-first from the left end in the given arrangement? (SOF NCO 2016)

B 4 @ D A © 7 9 F % 2 R 5 H 6 E * N $ 1 U W 3 P T 8 6 x V # Y I

If first 6 letters of the English alphabet are written in reverse order then next 6 letters are written in reverse order and so on but the last two letters Y and Z are interchanged, then which will be the 4th letter to the left of the 13th letter from the right?   (SOF NCO 2016)

How many symbols are there in the given series which are preceded by a consonant and followed by an odd number? (SOF NCO 2016)

R T @ 4 5 L S # 2 U V 3 £ 0 1 N P * 3 $ V E J 5 Q R © 6

How many 2's are there in the given arrangement, each of which Is not Immediately preceded by a perfect square and followed by an odd number?   (SOF NCO 2016)

6 4 2 5 2 8 2 9 2 1 3 8 6 2 1 2 5 8 6 1 2 4 2 5

Consider the following letter/number/symbol arrangement and answer the question that follows:     (SOF NCO 2016

@ C F S 9 W A * X 6 9 Q J % H 8 U N 1 2 T # 4 5 7 K $

What should come in the place of the question mark (?) in the following series based on the above arrangement?

* 6 Q 9 J H % 8 N U 1 T ?

Two rows of numbers are given. The resultant number in each row is to be worked out separately based on the following rules and the question below the rows of numbers Is to be answered. The operations on numbers progress from left to right.

Rules:

(i) If a two digit odd number is followed by a prime number the first number is to be multiplied by the prime number.
(ii) If an even number is followed by another even number, the first number is to be divided by the second number.
(iii) If an odd number is followed by a composite odd number, the first number is to be added to the second number.
(iv) If an even number which is multiple of 5 is followed by another number which is a multiple of 5, the second number is to be subtracted from the first number.
(v) If a number which is perfect square is followed by another number which is a perfect square, the resultant number is the product of the square roots of the two numbers.

21      9     15

81     25     5

Rita stands third in a row of twenty students, arranged in ascending order of height. Five new students join the group, all taller than Rita. What will be Rita's position if the students are now arranged in descending order of their heights?     (SOF IMO 2017)