Staff Selection Commission Multi Tasking Staff Exam
Question : If the third proportion of 3 and $x$ is 27 and the third proportion of 2 and $y$ is 8, then find $x : y$.
Option 1: 7 : 9
Option 2: 4 : 5
Option 3: 3 : 7
Option 4: 9 : 4
Correct Answer: 9 : 4
Solution : If c is called the third proportional to a and b, then a : b = b : c The third proportion of 3 and $x$ is 27. So, $\frac{3}{x}=\frac{x}{27}$ $⇒x=\sqrt{3×27}$ $\therefore x = 9$ The third proportion of 2 and $y$ is
Question : The breaking up of the rocks on the earth's surface is called___________.
Option 1: conurbation
Option 2: weathering
Option 3: desertification
Option 4: flacking
Correct Answer: weathering
Solution : The correct option is weathering.
The dissolution or breakdown of rocks and minerals on the surface of the Earth is known as weathering. Weathering agents include plants, animals, water, ice, acids, salt, and temperature fluctuations. After the rock has broken down, the minerals and rock
Question : Select the most appropriate option to fill in the blank.
The ______ of directors will decide the penalty.
Option 1: bowed
Option 2: braid
Option 3: bored
Option 4: board
Correct Answer: board
Solution : The correct choice is the fourth option.
A board is a group of people that is responsible for decision-making in an organisation. This helps convey the intended meaning that the board of directors, meaning the group of people designated as directors in an organisation,
Question : Directions: In the following question, select the related number from the given alternatives. 100 : 121 :: 36 : ?
Option 1: 64
Option 2: 49
Option 3: 25
Option 4: 16
Correct Answer: 49
Solution : Given: 100 : 121 :: 36 : ?
Like, 100 : 121→(10)2 = 100 and (11)2 = 121 Similarly, 36 : ?→(6)2 = 36 and (7)2 = 49
Hence, the second option is correct.
Question : What is the value of (A × B) if A = 7 × 21 ÷ 49 - 8 × 7 ÷ 16 and B = 12 ÷ 6 – 3 × 2 + 5 × 3.
Option 1: –7
Option 2: –4.5
Option 3: –6
Option 4: –5.5
Correct Answer: –5.5
Solution : According to the question A = 7 × 21 ÷ 49 - 8 × 7 ÷ 16 B = 12 ÷ 6 - 3 × 2 + 5 × 3 Now, ⇒ (A × B) = (7 × 21 ÷ 49 – 8 × 7
Question : What is the third proportion of the numbers 15 and 30?
Option 1: 45
Option 2: 50
Option 3: 40
Option 4: 60
Correct Answer: 60
Solution : The third proportion of two numbers $a$ and $b= \frac{b^2}{a}$ Substituting $a = 15$ and $b = 30$ into the formula, So, the third Proportion = $\frac{30^2}{15}$ = 60 Hence, the correct answer is 60.
Question : Select the most appropriate meaning of the given idiom.
Castle in the air
Option 1: Acquire something honestly
Option 2: Unrealistic plan
Option 3: Very expensive
Option 4: Polluted air
Correct Answer: Unrealistic plan
Solution : The correct choice is the second option.
The idiom "castle in the air" is used to describe a fanciful or impractical project or idea that is unlikely to be realised. It implies that the plan or dream is like building a castle in
Question : Select the most appropriate option to fill in the blank. The researcher team took air ______ from the room every five minutes to rule out the possibility of a virus.
Option 1: instances
Option 2: slices
Option 3: samples
Option 4: droops
Correct Answer: samples
Solution : The correct option will be the third option.
In the context of scientific research and testing for the presence of a virus, samples refer to a small portion or representative selection of air that can be analysed.
Instances, slices, and droops do not convey the
Question : Simple interest on a sum for eight months at the rate of 8 percent per annum is Rs. 240. What is the value of the sum?
Option 1: Rs. 7500
Option 2: Rs. 6000
Option 3: Rs. 7200
Option 4: Rs. 4500
Correct Answer: Rs. 4500
Solution : According to the question Simple interest = $\frac{P × R × T}{100}$ ⇒ 240 = $\frac{P × 8 × \frac{8}{12}}{100}$ ⇒ 240 = $\frac{P × \frac{64}{12}}{100}$ ⇒ 240 = $\frac{P×\frac{16}{3}}{100}$ ⇒ P = $\frac{24000×3}{16}$ = 4500 Hence, the correct answer is Rs. 4500.
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.
Archaeologists believe that counting large quantities (1) _______ about 10,000 years ago. Early farmers had to (2) _______ for communally stored crops. Early counting systems involved small tokens, which represented farmers' stores. In the area which is now southern Iraq, little figures shaped like discs, balls, and pyramids (3) ______ used in about 7500 B.C. to represent various holdings. Later, marks which represented the figures were (4) ______ on clay tablets by use of a blunt reed to cut into the wet clay. Still, the symbols were (5) ______ connected with specific merchandise.
Question: Select the most appropriate option to fill in the blank no. 5.
Option 1: like
Option 2: always
Option 3: some
Option 4: just
Correct Answer: always
Explanation: The term always in this context suggests a consistent or continual connection between the symbols and specific merchandise. It conveys the idea that the symbols were perpetually associated with particular goods.
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