Staff Selection Commission Combined Graduate Level Exam
Question : The average of marks obtained by 100 candidates in a certain examination is 30. If the average marks of the passed candidates are 35 and those of the failed candidates are 10. What is the number of candidates who passed the examination?
Option 1: 60
Option 2: 70
Option 3: 80
Option 4: 90
Correct Answer: 80
Solution : The average marks of the passed candidates are 35 and those of the failed candidates are 10. Using the alligation method, we get, The ratio of the number of pass students to fail students = 20 : 5 = 4 : 1 So, Total students
Question : Direction: In the following question a word is followed by four other words, one of which can not be formed by using the letters of the given word. Find this word.
ADOLESCENT
Option 1: ENCLOSE
Option 2: DONATE
Option 3: SECRET
Option 4: LEAST
Correct Answer: SECRET
Solution : Given:
First option: ENCLOSE;
All the letters of the above word are present in the given word ADOLESCENT.
Second option: DONATE;
Third option: SECRET;
Letter R of the above word
Question : Select the most appropriate option to fill in the blank.
She is ______ a peacock in the blue satin saree.
Option 1: very beautiful as
Option 2: so beautiful as
Option 3: as beautiful as
Option 4: beautiful like
Correct Answer: as beautiful as
Solution : The correct choice is the third option.
The phrase, as beautiful as is used to draw parallelism to convey that she is as beautiful in a blue saree as a peacock. Her beauty in her blue saree is being compared to that of
Question : Directions: P and Q are sisters. R and S are brothers. P's daughter is R's sister. What is Q's relation to S?
Option 1: Mother
Option 2: Grandmother
Option 3: Sister
Option 4: Aunt
Correct Answer: Aunt
Solution : As per the given information, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
So, from the above family tree, Q is the aunt of S. Hence, the fourth option
Question : Direction: In this question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in the two matrices, given below. The columns and rows of Matrix (I) are numbered from 0 to 4 and that of Matrix (II) are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g. 'A' can be represented by 02,65, etc., and 'S' can be represented by 56, 68, etc. Similarly, you have to identify the set for the word.
'RATE'
Option 1: 22, 24, 75, 99
Option 2: 66, 77, 68, 23
Option 3: 44, 77, 22, 87
Option 4: 22, 77, 79, 76
Correct Answer: 22, 24, 75, 99
Solution : Given: RATE
Number representations of each letter: R → 01, 22, 44, 95, 66, 59 A → 31, 02, 24, 65, 57, 88 T → 00, 41, 23, 75, 87, 97 E → 20, 40, 04, 55, 77, 99
First option:
Question : The sum of the cube of two numbers in the ratio 3 : 4 is 5824. The sum of the numbers is:
Option 1: 5824
Option 2: 28
Option 3: 24
Option 4: 14
Correct Answer: 28
Solution : Let the numbers be $3x$ and $4x$. Then $(3x)^3+(4x)^3 = 5824$ ⇒ $27x^3+64x^3 = 5824$ ⇒ $91x^3 = 5824$ ⇒ $x^3 = 64$ $\therefore x= 4$ So, the sum of the numbers is = (3 × 4) + (4 × 4) = 12 + 16
Question : Given below are four sentences in jumbled order. Pick the option that gives their correct order. A. Although Sonu had many more that he wanted to ask, he realised mummy was tired and became silent. B. She answered a few and then stopped. C. When mummy returned from work, she took Sonu for a walk. D. But she was too tired to answer all his questions.
Option 1: CABD
Option 2: BDAC
Option 3: DACB
Option 4: CDBA
Correct Answer: CDBA
Solution : The correct choice is the fourth option: CBDA.
Explanation: Here, C sets the scene with Mummy returning from work. D explains how her tiredness affects her ability to answer questions. B shows she answered a few before stopping. A concludes with Sonu's realisation and
Question : The Lodi dynasty was founded by
Option 1: Ibrahim Lodi
Option 2: Sikandar Lodi
Option 3: Bahlol Lodi
Option 4: Khizr Khan
Correct Answer: Bahlol Lodi
Solution : The correct option is - Bahlol Lodi
The Lodi dynasty was founded by Bahlol Lodi. He ascended to the throne of the Delhi Sultanate in 1451 after defeating the last ruler of the Sayyid dynasty, Sultan Alam Shah. Bahlol Lodi was a powerful and
Question : X-rays can be used
Option 1: for cutting and welding of metals.
Option 2: to detect heart diseases.
Option 3: to detect defects in precious stones and diamonds.
Option 4: to detect gold under the earth.
Correct Answer: to detect defects in precious stones and diamonds.
Solution : The correct option is to detect defects in precious stones and diamonds.
In valuable stones including diamonds, X-rays can be utilized to spot flaws and interior properties. X-ray radiography is the name of this procedure. X-rays go through
Question : Direction: In the following question, select the one which is different from other three alternatives.
Option 1: XZY
Option 2: MON
Option 3: PRQ
Option 4: EAC
Correct Answer: EAC
Solution : Let's analyze the given alternatives –
First option: XZY
Swap the second and third letter of the above letter cluster –
XZY → XYZ
The letters of this letter cluster are the consecutive alphabets.
Second option: MON
Swap the second and third letter of the
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