FREE AMCAT Logical Reasoning: Coding & Series Questions and Answers

Question 1

If in a certain language, 'ROSE' is coded as 'TQUG', how is 'BLUE' coded?

Accepted Answer

DNWG

Answer

The coding pattern involves shifting each letter forward by two positions in the alphabet. R (+2) -> T, O (+2) -> Q, S (+2) -> U, E (+2) -> G. Applying the same logic to 'BLUE': B (+2) -> D, L (+2) -> N, U (+2) -> W, E (+2) -> G.

Question 2

Find the next number in the series: 2, 5, 10, 17, 26, ?

Accepted Answer

37

Answer

The pattern is based on the difference between consecutive terms. The differences are 3 (5-2), 5 (10-5), 7 (17-10), and 9 (26-17). This is a series of consecutive odd numbers. The next difference should be 11. Therefore, the next number is 26 + 11 = 37.

Question 3

In a certain code, 'BREAK' is written as '51342' and 'KITE' is written as '2796'. How is 'RIBB' written in that code?

Accepted Answer

1755

Answer

This is a direct substitution code where each letter is assigned a specific digit. From 'BREAK', we get R=1 and B=5. From 'KITE', we get I=7. Therefore, to code 'RIBB', we substitute the corresponding digits: R -> 1, I -> 7, B -> 5, B -> 5. The code is 1755.

Question 4

Find the missing term in the series: A, D, I, P, ?

Accepted Answer

Y

Answer

The series is based on the alphabetical position of the letters, which are perfect squares. A is the 1st letter (1²), D is the 4th letter (2²), I is the 9th letter (3²), and P is the 16th letter (4²). The next term will be the 25th letter (5²), which is Y.

Question 5

If 'GO' = 32 and 'SHE' = 49, then 'SOME' will be equal to?

Accepted Answer

56

Answer

The code is the sum of the reverse alphabetical positions of the letters (A=26, Z=1). For 'GO': G's reverse is T(20) and O's reverse is L(12), so 20+12=32. For 'SHE': S's reverse is H(8), H's reverse is S(19), E's reverse is V(22), so 8+19+22=49. For 'SOME': S(8) + O(12) + M(14) + E(22) = 56.

(AMCAT) Aspiring Minds Computer Adaptive Test Practice Test

(AMCAT) Aspiring Minds Computer Adaptive Test Practice Test

FREE AMCAT Logical Reasoning: Coding & Series Questions and Answers