SSC CHSL Tier 1 2020 General Intelligence & Reasoning Questions with Solutions

Explanation

The coding pattern involves reversing the order of the letters of the word and then shifting each letter forward by one position in the alphabetical sequence (+1).

For the word BEAUTY, reversing the letters gives YTUAEB. Shifting each of these letters forward by one position (+1) yields: Y → Z T → U U → V A → B E → F B → C This results in the coded word ZUVBFC.

Following the same logic for MARTYR, reversing the letters gives RYTRAM. Shifting each of these letters forward by one position (+1) yields: R → S Y → Z T → U R → S A → B M → N This results in the coded word SZUSBN.

Explanation

The relation between the letter-clusters in each pair is based on a constant backward shift of 3 positions for each letter in the English alphabetical order.

For the first pair, KRZ : HOW: K - 3 = H (11 - 3 = 8) R - 3 = O (18 - 3 = 15) Z - 3 = W (26 - 3 = 23)

Applying this identical pattern of shifting each letter backward by 3 positions to the cluster CUX: C - 3 = Z (3 - 3 = 0, which wraps around to 26) U - 3 = R (21 - 3 = 18) X - 3 = U (24 - 3 = 21)

Explanation

To arrange the given words in alphabetical order as they appear in an English dictionary, we compare them letter by letter from left to right. All five words begin with the prefix Do, so we compare their third letters:

Domestic and Dominate have m as their third letter. Donate has n as its third letter. Dorsal has r as its third letter. Dovetail has v as its third letter.

Since m comes before n, n before r, and r before v in the alphabet, we first sort Domestic and Dominate. Comparing their fourth letters, e in Domestic comes before i in Dominate, which places Domestic first (2) and Dominate second (3).

Following this, Donate (4) comes third, Dorsal (5) comes fourth, and Dovetail (1) comes last, resulting in the correct sequence 2, 3, 4, 5, 1.

Explanation

The given sequence is an alternating sequence composed of two distinct series.

The series occupying the odd positions (first, third, fifth, seventh, and ninth terms) consists of the letters K, N, Q, T, and the missing term. Converting these letters to their numerical positions in the English alphabet: K = 11 N = 14 Q = 17 T = 20

Each term in this series is obtained by adding 3 to the previous term. Following this constant difference of +3, the next term in the series (the ninth term of the main sequence) is obtained by adding 3 to 20: 20 + 3 = 23

The 23rd letter of the English alphabet is W.

The series occupying the even positions (second, fourth, sixth, and eighth terms) consists of B (2), D (4), F (6), and H (8), which increases by +2 at each step, confirming the alternating structure of the sequence.

Explanation

The relationship established in the first pair is State and its Capital. Kohima is the capital city of Nagaland. Following the same pattern, Dispur is the capital city of Assam.

Explanation

The relationship in the given pair of words is a member-to-class relationship, where wheat is a specific type of cereal. Similarly, cinnamon is a specific type of spice, maintaining the exact same classification relationship where the first term is an individual item belonging to the broader category defined by the second term.

Explanation

In the given set (789, 501, 645), the relationship between the numbers is that the third number is the arithmetic mean of the first two numbers.

Formula: (First number + Second number) / 2 = Third number

Applying this to the given set: (789 + 501) / 2 = 1290 / 2 = 645

Applying the same logic to the numbers in option A: (455 + 573) / 2 = 1028 / 2 = 514

Explanation

To find the day of the week on 26 February 2005, we calculate the number of odd days from 29 January 2003 to 26 February 2005.

First, we find the odd days between 29 January 2003 and 29 January 2005. This span of 2 years includes the leap year 2004 (which adds 1 extra day to the count). Odd days from years = 2 years + 1 leap day = 3 odd days

Next, we count the remaining days from 29 January 2005 to 26 February 2005. Days remaining in January 2005 = 31 - 29 = 2 days Days in February 2005 = 26 days Total days = 2 + 26 = 28 days Odd days from remaining days = 28 mod 7 = 0 odd days

Total odd days = 3 + 0 = 3 odd days

Adding 3 days to Wednesday yields Saturday.

Explanation

The expression is K + U - T × R ÷ M.

Decoding the relationships step-by-step: K + U indicates K is the mother of U. U - T indicates U is the sister of T. This means U and T are siblings, both being children of K. T × R indicates T is the son of R. Since K is already the mother of T, R must be the father of T, which makes K and R husband and wife. R ÷ M indicates R is the father of M.

Since K is married to R and R is the father of M, K is the mother of M.

Explanation

In this code language, the code for a word is obtained by adding the alphabetical positional values of each of its letters and then adding the total number of letters in that word.

For the word REQUIRE: The alphabetical positions are R = 18, E = 5, Q = 17, U = 21, I = 9, R = 18, and E = 5. The sum of these positions is 18 + 5 + 17 + 21 + 9 + 18 + 5 = 93. Since the word REQUIRE has 7 letters, we add 7 to the sum: 93 + 7 = 100.

Applying the same logic to the word ARRANGE: The alphabetical positions are A = 1, R = 18, R = 18, A = 1, N = 14, G = 7, and E = 5. The sum of these positions is 1 + 18 + 18 + 1 + 14 + 7 + 5 = 64. Since the word ARRANGE has 7 letters, we add 7 to the sum: 64 + 7 = 71.