Staff Selection Commission Combined Graduate Level Exam
Question : Select the INCORRECT statement with respect to the properties of a circle.
Option 1: Two tangents drawn at the end of the diameter of a circle are parallel.
Option 2: The radius drawn perpendicular to a chord bisects the chord.
Option 3: The diameter of a circle is the longest chord of a circle.
Option 4: The perpendicular distance from the centre of a circle increases when the length of a chord increases.
Correct Answer: The perpendicular distance from the centre of a circle increases when the length of a chord increases.
Solution : It is clearly visible that when the length of the chord increases, it will not affect the length of the perpendicular. Hence, the correct answer is the perpendicular distance
Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:
The number of students who have secured marks less than 60 is:
Option 1: 12
Option 2: 15
Option 3: 33
Option 4: 7
Correct Answer: 33
Solution : The number of students who have scored in the interval 0 - 20 = 7 The number of students who have scored in the interval 20 - 40 = 8 The number of students who have scored in the interval 40 - 60 = 18
Question : A man, a woman, and a boy can complete a job in 3, 5, and 15 days, respectively. How many boys must assist 1 man and 1 woman to complete the job in $\frac{1}{5}$ of a day?
Option 1: 67
Option 2: 35
Option 3: 56
Option 4: 47
Correct Answer: 67
Solution : Man can complete work in 3 days. Women can complete work in 5 days. Boy can complete work in 15 days. LCM of 3, 5, and 15 is 15 Total work = 15 units Efficiency of a man = $\frac{15}{3}$ = 5 units Efficiency of
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
Mothers keep on (1) / to encourage their children (2) / to study. (3) / No Error (4)
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 2
Solution : The correct choice is the second option.
The correct form should be "encouraging" instead of "to encourage". The continuous verb form follows the preposition on,
Therefore, the correct sentence would be: Mothers keep on encouraging their children to study.
Question : Comprehension: In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
A marketplace is always abuzz with activity. It is especially (1)_________a visit in the evenings. A (2)_________range of items are on display. (3) _________and getting a satisfactory (4) __________give the necessary sense of (5) __________to the bored housewife and bring a smile (6) ________her face. People from all (7) _________of life, rich and poor, (8) _________shoulders with each other. From their busy (9). __________, here people find time to (10) __________a greeting with friends or neighbours.
Question: Select the most appropriate option to fill in the blank number 5.
Option 1: exertion
Option 2: achievement
Option 3: creation
Option 4: improvement
Correct Answer: achievement
Solution : The second option is the correct choice.
In the given context, the word achievement is suitable as it conveys that obtaining a satisfactory result in bargaining or dealing adds a sense of accomplishment or success.
Therefore, the correct answer will be achievement.
Question : Select the word which means the same as the group of words given.
An animal or person that eats a variety of food of both plant and animal origin.
Option 1: Omnivore
Option 2: Herbivore
Option 3: Carnivore
Option 4: Cannibal
Correct Answer: Omnivore
Solution : The correct choice is the first option.
An omnivore is an animal that is naturally able to eat both plant-based food and other animal's meat.
The meanings of the other options are as follows:
Question : Directions: Which option represents the correct order of the given words as they would appear in the English dictionary? 1. Elite 2. Elude 3. Elaborate 4. Elapsed 5. Elongate
Option 1: 3, 4, 1, 5, 2
Option 2: 3, 5, 1, 4, 2
Option 3: 4, 3, 5, 1, 2
Option 4: 3, 5, 2, 4, 1
Correct Answer: 3, 4, 1, 5, 2
Solution : Given: 1. Elite 2. Elude 3. Elaborate 4. Elapsed 5. Elongate
Step 1: In the given words, the first letter and second letter E and L of all the words are the same. Therefore, move to the next letter. Step 2:
Question : Directions: In a certain code language, TOP is coded as 102 and BAD is coded as 14. How will DOG be coded in that language?
Option 1: 51
Option 2: 52
Option 3: 53
Option 4: 50
Correct Answer: 52
Solution : Given: TOP is coded as 102 –
Add the position value of the letters of the given word of TOP then multiply the resultant term by 2, to obtain the required code – T→20; O→15; P→16 Now, add the position value of the given word
Question : Directions: Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter series. LTK_HL_ _JH_V_JHL_K_H
Option 1: JUKLKWJ
Option 2: IUKLKWJ
Option 3: IUKMKWJ
Option 4: JUKLKXJ
Correct Answer: JUKLKWJ
Solution : Given: LTK_HL_ _JH_V_JHL_K_H
To fill the series we have to divide the series – LTK_H / L_ _JH / _V_JH / L_K_H
Let's check each option – First option: JUKLKWJ; LTKJH / LUKJH / LVKJH / L
Question : A person loses 75% of his money in the first bet, 75% of the remaining in the second bet and 75% of the remaining in the third bet and returns home with only Rs. 2. His initial money was:
Option 1: Rs. 64
Option 2: Rs. 128
Option 3: Rs. 256
Option 4: Rs. 512
Correct Answer: Rs. 128
Solution : Let the person have Rs. $x$ initially. He loses $75$% of his money up to the third bet and returns home with Rs. 2. According to the question, $x×\frac{100–75}{100}×\frac{100–75}{100}×\frac{100–75}{100}=2$ $⇒ x×\frac{1}{4}×\frac{1}{4}×\frac{1}{4}=2$ $⇒ x=128$ Hence, the correct answer is Rs. 128.
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