Data Sufficiency Coding Decoding

Data Sufficiency : this topic tests the knowledge of basic math , facts and skills along with reasoning, analytical, and problem-solving abilities in a candidate. Each data sufficiency item presents you with a question. You do not actually have to find the answer to the problem; instead, your challenge is to decide whether or not the information presented along with the question would be sufficient to allow you to answer the question.

These questions are based on mathematical and logical principles . Don't make these two mistakes which are given below

Never try to reach the final answer as it is not asked for. You need to find whether the information provided is enough to solve the given problem or not.

Never make any assumptions. Use only universal rules.

Approach : Solve the questions step by step. First, try to find the answer using information in first statement, then try only second, and finally try combining the information in both.

Caution :

Even if you find the answer with only one statement, try to find the answer using the other statement also as sometimes there can be an option which says that the answer can be found using both statement separately.

In case you are unable to reach any conclusion with information provided, mark the answer as 'Both I and II are not sufficient' and move on quickly.

Data Sufficiency - Coding Decoding : In these type of questions, certain words, letters or sentences will be coded and you need to find the statement(s) in which the data is sufficient to find the logic in the given question.

Directions : In the given problem, a question is followed two statements numbered I and II. You have to decide whether the data provided in the statements is sufficient to answer the question, and then give your answer accordingly.

Only I is sufficient.

Only II is sufficient.

Both I and II are required.

Both I and II are not sufficient.

Example 1 : In a certain code language, '297' means 'tie clip button'. Which number represents the word 'button' in that language ?

(I) In the same language, '296' means 'clip your tie'.

(II) In the same language, '195' means 'hole and clip'.

Answer : - (1)

Solution : The common words are 'tie and clip', and the common codes are '2' and '9'. So '2' and '9' are the codes for 'tie' and 'clip'.

Thus, in the given statement I, '7' means 'button'.

In statement II, only '9' is common, and among the words only 'clip' is common. Hence, we cannot find code for 'button'.

Therefore only I is sufficient to answer the question.

Sample Questions

(More Questions for each concept available in Login)

Question : 1

The question below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer Question : - What is the colour of the fresh grass ? I. Blue is called green, red is called orange, orange is called yellow. II. Yellow is called white, white is called black, green is called brown and brown is called purple.
A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question;
C. If the data either in statement I alone or in statement II alone are sufficient to answer the question;
D. If the data given in both statements Id II together are not sufficient to answer the question;
Right Option : B
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Question : 2

The questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question, Read both the statements and give answer Question : - Which code word stands for 'good' in the coded sentence 'sin co bye' which means 'He is good' ? I. In the same code language, 'co mot det' means "They are good'. II. In the same code language, 'sin mic bye' means 'He is honest'.
A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question;
C. If the data either in statement I alone or in statement II alone are sufficient to answer the question
D. If the data given in both statements I and II together are not sufficient to answer the question.
Right Option : C
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Question : 3

The questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer Question : - In a certain code, 'nop al ed' means "They like flowers'. Which code word means 'flowers'? I. 'id nim nop' means They are innocent'. II 'gob ots al' means We like roses'.
A. if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
C. If the data either in statement I alone or in statement II alone are sufficient to answer the question
D. If the data in both statements I and II together are necessary to answer the question.
Right Option : D
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