Staff Selection Commission Multi Tasking Staff Exam
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.
Question : Directions: If 8 × 16 × 9 = 8169 and 9 × 23 × 4 = 9234, then 4 × 10 × 11 = ?
Option 1: 11014
Option 2: 41011
Option 3: 14610
Option 4: 10114
Correct Answer: 41011
Solution : Given: 8 × 16 × 9 = 8169; 9 × 23 × 4 = 9234
Remove the multiplication sign and combine the numbers on the L.H.S. to form a single number as the resultant. Like, 8 × 16 × 9 = 8169 9 × 23
Question : Fill in the blank with the most appropriate option. I watched him with the excitement of _______ him to do anything at any time.
Option 1: lacking
Option 2: excepting
Option 3: expecting
Option 4: accepting
Correct Answer: expecting
Solution : The third option is correct.
Question : A 480 m long train takes 16 seconds to pass a pole. How long will it take to pass a platform that is 900 m long?
Option 1: 47 s
Option 2: 45 s
Option 3: 46 s
Option 4: 48 s
Correct Answer: 46 s
Solution : Speed of the train = $\frac{480}{16}$ = 30 m/s When the train crosses the platform of length 900 m. Total distance = 480 + 900 = 1380 m Time taken = $\frac{1380}{30}$ = 46 s Hence, the correct answer is 46 s.
Question : In a bag, the number of INR 5 coins is 8 more than the number of INR 10 coins but 20% less than the number of INR 2 coins. If the total amount in the bag is INR 270, what is the number of INR 5 coins?
Option 1: 15
Option 2: 20
Option 3: 25
Option 4: 18
Correct Answer: 20
Solution : Let's assume the number of INR 2, INR 5 and INR 10 coins are 'a', 'b', and 'c' respectively. In a bag, the number of INR 5 coins is 8 more than the number of INR 10 coins but 20% less than the number of
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