Staff Selection Commission Combined Graduate Level Exam
Question : A thief is spotted by a policeman from a distance of 210 m. When the policeman starts the chase, the thief also starts running. If the speed of the thief is 25 km/hr and that of the policeman is 32 km/hr, then how far would the thief have run (in m) before he is overtaken?
Option 1: 920
Option 2: 480
Option 3: 1200
Option 4: 750
Correct Answer: 750
Solution : Let the time taken to catch the thief be $x$ hour. Distance travelled by thief going at 25 km/hr = $25x$ Distance travelled by policeman going at 32 km/hr = $32x$ Now, distance travelled by thief + $\frac{210}{1000}$ = Distance travelled by policeman ⇒ $25x
Question : Directions: The weights of 4 boxes are 30, 20, 60 and 70 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination a box can be used only once?
Option 1: 180
Option 2: 170
Option 3: 120
Option 4: 150
Correct Answer: 170
Solution : Given: The weights of 4 boxes are 30, 20, 60 and 70 kilograms.
The total weight of all possible combinations of boxes is as follows – 30 + 20 = 50; 30 + 60 = 90; 30 + 70 = 100; 20 + 60 =
Question : There are 1400 students in a school, 25% of them wear spectacles and $\frac{2}{7}$th of those wearing spectacles are boys. How many girls in the school wear spectacles?
Option 1: $250$
Option 2: $100$
Option 3: $200$
Option 4: $300$
Correct Answer: $250$
Solution : Total number of students = 1400 Number of students wearing spectacles $= 1400 × \frac{25}{100} = 350$ Number of boys wearing spectacles $= 350 × \frac{2}{7} = 100$ Therefore, the number of girls wearing spectacles $= 350 -100 = 250$ Hence, the correct answer is
Question : Select the most appropriate meaning of the given word.
Termagant
Option 1: One who speaks many languages
Option 2: Overscrupulous about minute details
Option 3: A magnet with strong polarity
Option 4: A violent, overbearing, turbulent, brawling, quarrelsome woman
Correct Answer: A violent, overbearing, turbulent, brawling, quarrelsome woman
Solution : The fourth option is the correct answer.
A violent, overbearing, turbulent, brawling, quarrelsome woman.
Termagant means a harsh-tempered woman.
Question : A ____ deficit is financed by net capital flows the rest of the world, thus by a capital account surplus.
Option 1: current account
Option 2: saving account
Option 3: capital account
Option 4: asset account
Correct Answer: current account
Solution : The correct option is current account.
In economics, a nation's balance of payments includes two parts: the capital account and the current account. When a nation's purchases of goods and services surpass its exports, it has a current account deficit, which is an indicator
Question : The salaries of a father, mother and daughter are in the ratio 2 : 3 : 5. What will be the ratio of their salaries if there was an increase of 15%, 10% and 20%, respectively?
Option 1: 19 : 13 : 15
Option 2: 23 : 33 : 60
Option 3: 17 : 37 : 50
Option 4: 17 : 18 : 25
Correct Answer: 23 : 33 : 60
Solution : Salary of father = $2x$ Salary of mother = $3x$ Salary of daughter = $5x$ There is an increase in the salary, 15%, 10%, and 20% respectively, Now, Salary of father $=2x + \frac{15\times 2x}{100} = \frac{230x}{100}$ Salary of mother $=
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select 'No Error'.
I suggest that (1) / he goes (2) / to the doctor as soon as he returns from the examination. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
In the case of the subjunctive mood, when we make a suggestion in the subordinate clause, the base form of the verb without "s" should be used.
The verb "goes" in the second part should
Question : The headwaters of the River Ganga is called ____________.
Option 1: Mandakini
Option 2: Alaknanda
Option 3: Bhagirathi
Option 4: Sursari
Correct Answer: Bhagirathi
Solution : The correct option is Bhagirathi.
The headwaters of the River Ganga are called the Bhagirathi. It originates from the Gangotri Glacier in the Indian Himalayas. The Prayags are sacred confluence points where the Ganges River and its major tributaries merge in Uttarakhand.
Question : Mixture A contains chocolate and milk in the ratio 4 : 3 and mixture B contains chocolate and milk in the ratio 5 : 2. A and B are taken in the ratio 5 : 6 and mixed to form a new mixture. The percentage of chocolate in the new mixture is closest to:
Option 1: 35%
Option 2: 69%
Option 3: 31%
Option 4: 65%
Correct Answer: 65%
Solution : The ratio of chocolate to milk in mixture A = 4 : 3 The ratio of chocolate to milk in mixture B = 5 : 2 Let 5 units taken from mixture A and 6 units taken from mixture B. The ratio of chocolate to
Question : A sum of Rs.10 is lent by a child to his friend to be returned in 11 monthly instalments of Re.1 each, the interest being simple. The rate of interest is:
Option 1: $11 \frac{9}{11} \%$
Option 2: $21 \frac{9}{11} \%$
Option 3: $10 \frac{2}{11} \%$
Option 4: $9 \frac{1}{11} \%$
Correct Answer: $21 \frac{9}{11} \%$
Solution : Let the rate of interest be $r\%$ per annum. Amount to be paid = $10 + \frac{10 \times r \times\frac{11}{12}}{100}= 10 + \frac{11r}{120}$ Total effective payment = (Re. 1 + interest on Re. 1 for 10 months) + (Re. 1 + interest on
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