Staff Selection Commission Multi Tasking Staff Exam
Question : What is the value of $\frac{156}{13} \times \frac{147}{24} \times \frac{8}{49}$ of $\frac{24}{144}?$
Option 1: 18
Option 2: 2
Option 3: 12
Option 4: 6
Correct Answer: 2
Solution : Given: $\frac{156}{13} \times \frac{147}{24} \times \frac{8}{49}$ of $\frac{24}{144}$ = $\frac{156×147×8×24}{13×24×49×144}$ = $\frac{12×3×8}{144}$ = 2 Hence, the correct answer is 2.
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 59, 63, 72, 88, 113, ?
Option 1: 141
Option 2: 159
Option 3: 139
Option 4: 149
Correct Answer: 149
Solution : Given: 59, 63, 72, 88, 113, ?
Add the square of natural numbers to the previous number, to get the next number of the series – 59 + 22 = 59 + 4 = 63 63 + 32 = 63 + 9 =
Question : Out of a total of 9 books arranged in a particular order, the mean of the number of pages in the first 5 books is 430, the mean of the number of pages in the last 5 books is 380 and the mean of the number of pages in all the 9 books is 400. Find the number of pages in the fifth book.
Option 1: 450
Option 2: 420
Option 3: 430
Option 4: 440
Correct Answer: 450
Solution : Given: Mean of the number of pages in the first 5 books = 430 Total number of the pages of 5 books = 430 × 5 = 2150 The mean of the number of pages in the last 5 books = 380 Total number of
Question : Comprehension:
In the following passage, some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. Pumpkins contain high levels of (1) ______. These are molecules that fight harmful free radicals, a (2) ______ of unstable molecule that can sometimes (3) ______ damage to our cells, which may cause ageing and contribute to (4)______ diseases over time. While some antioxidants occur (5) ______ in our bodies, others we get from fruits and vegetables.
Select the most appropriate option to fill in the blank number 1.
Option 1: sentiments
Option 2: atoms
Option 3: antioxidants
Option 4: supplements
Correct Answer: antioxidants
Solution : The third option is the correct choice.
Antioxidants are molecules that combat harmful free radicals, which can cause damage to our cells and contribute to ageing and various diseases over time.
The meanings of the other options are as follows:
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".
One should (1) / look after (2) / their parents. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
Solution : The error lies in the third part of the sentence.
The pronoun "their" should be replaced with "one's", as it is always used as the possessive form of one.
Therefore, the correct sentence is: One should look after one's parents.
Question : A alone can do $\frac{1}{4}$th part of the work in 12 days. B alone can do $\frac{1}{5}$th part of the work in 4 days. In how many days can A and B together can do the same work?
Option 1: $\frac{330}{13}$ days
Option 2: $\frac{240}{17}$ days
Option 3: $\frac{210}{4}$ days
Option 4: $\frac{255}{7}$ days
Correct Answer: $\frac{240}{17}$ days
Solution : Let the total work as 1 unit. Given that A alone can do $\frac{1}{4}$th part of the work in 12 days. The rate at which A works $= \frac{1}{12×4} = \frac{1}{48}$ And given that B alone can do $\frac{1}{5}$th part of the work in
Question : In which of the following regions, a cyclone is known as a "typhoon"?
Option 1: India
Option 2: Japan
Option 3: Canada
Option 4: Brazil
Correct Answer: Japan
Solution : The correct option is Japan.
In the western Pacific region, a cyclone is known as a "typhoon." Japan, located in this region, experiences typhoons during the tropical cyclone season. Typhoons are powerful tropical storms, and the naming convention differs regionally, with "typhoon" used in
Question : After the Battle of Plassey in 1757, who from the British East India Company, became Baron of Plassey?
Option 1: John Lawrence
Option 2: Warren Hastings
Option 3: Robert Clive
Option 4: Charles Napier
Correct Answer: Robert Clive
Solution : The correct answer is Robert Clive.
Robert Clive became the Baron of Plassey from the British East India Company after the Battle of Plassey in 1757. The Battle of Plassey was fought between the British East India Company and the Nawab of Bengal,
Question : Directions: Select the missing number from the given responses.
Option 1: 12
Option 2: 20
Option 3: 18
Option 4: 13
Correct Answer: 12
Solution : The third column is the sum of the square root of the first and the second column.
In the first column; 25 = (5)²; 36 = (6)²→5 + 6 = 11 In the second column; 49 = (7)²; 81 = (9)²→7 + 9 = 16
Question : Directions: Select the option that is related to the third number in the same way as the second number is related to the first number. 11 : 1342 :: 7 : ?
Option 1: 350
Option 2: 340
Option 3: 250
Option 4: 360
Correct Answer: 350
Solution : Given: 11 : 1342 :: 7 : ?
Like, 11 : 1342→(11)3 + 11 = 1331 + 11 = 1342 Similarly, follow the same pattern for 7 – (7)3 + 7 = 343 + 7 = 350
So, the required term is 350.
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