Staff Selection Commission Multi Tasking Staff Exam
Question :
Directions: In the following question, you have to identify the correct response from the given premises stated according to the following symbols. If – means addition, + means subtraction, × means division, and ÷ means multiplication, then 7 – 10 × 5 ÷ 6 + 4 = ?
Option 1: 3
Option 2: 12
Option 3: 15
Option 4: 9
Correct Answer: 15
Solution : Given: – means addition, + means subtraction, × means division, and ÷ means multiplication. 7 – 10 × 5 ÷ 6 + 4 = ?
After replacing the symbols as per the information provided, the equation becomes – = 7 + 10 ÷ 5 ×
Question : Tina can do a work in 15 days and Manya can do the same work in 18 days. If they worked for 6 days, then what is the fraction of work is left?
Option 1: $\frac{4}{15}$
Option 2: $\frac{8}{15}$
Option 3: $\frac{11}{15}$
Option 4: $\frac{11}{30}$
Correct Answer: $\frac{4}{15}$
Solution : One day work of Tina = $\frac{1}{15}$ One day work of Manya = $\frac{1}{18}$ One day work of Tina and Manya = $\frac{1}{15}+\frac{1}{18}$ = $\frac{6+5}{90}$ = $\frac{11}{90}$ Six day work of Tina and Manya = $\frac{11}{90}\times6$ = $\frac{11}{15}$ Remaining work = $(1-\frac{11}{15})$ = $\frac{4}{15}$ Hence,
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 6, 11, 21, 41, 81, ?
Option 1: 241
Option 2: 151
Option 3: 161
Option 4: 240
Correct Answer: 161
Solution : Given: 6, 11, 21, 41, 81, ?
The pattern is as follows – (6 × 2) – 1 = 12 – 1 = 11 (11 × 2) – 1 = 22 – 1 = 21 (21 × 2) – 1 = 42 – 1 =
Question : Directions: If a mirror is placed on line AB, then which of the answer figures is the right image of the given figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per mirror image properties, closer things appear close to the mirror in reflection. According to the information provided, the mirror is placed at the right of the figure (on line AB). So, the right of the reflected image will appear as its left, and the
Question : The following pie chart shows the sectors representing the shares of the number of electric buses manufactured in each of 7 different colours in a given year in terms of the central angles (in degrees) with respect to the total number of buses manufactured during that year of all the 7 colours taken together. What is the difference in the percentage shares of buses of $\mathrm{C} 4$ and $\mathrm{C} 6$? [Give your answer correct to 2 decimal places.]
Option 1: 11.11%
Option 2: 8.33%
Option 3: 9.09%
Option 4: 12.5%
Correct Answer: 8.33%
Solution : From the given pie- chart, C4 = 48° C6 = 18° We know, Percentage = $\frac{\text{Given Angle}}{360°}\times 100$ Percentage of C4 = $\frac{48°}{360°}\times100$ = 13.33% Percentage of C6 = $\frac{18°}{360°}\times100$ = 5% Difference = 13.33% – 5% = 8.33% Hence, the correct answer is 8.33%.
Question : A dealer marks his goods at 44% above the cost price. Then he allows 50% discount on it. What would be his loss percentage?
Option 1: 25%
Option 2: 28%
Option 3: 26%
Option 4: 32%
Correct Answer: 28%
Solution : Let the cost price be 100. Marked price above 44% = 144 Discount = 50% Selling price = $\frac{\text{Discount}}{100}\times$ Marked price = $\frac{50}{100}\times144$ = 72 Loss = cost price – selling price = 100 – 72 = 28 Loss percent = $\frac{\text{Loss}}{\text{Cost price}}\times100$% = $\frac{28}{100}\times100$%
Question : Direction: In the given question, a sentence is given with a blank to be filled in with an appropriate word. Four alternatives are suggested for each question. Choose the correct alternative out of the four alternatives.
Can you tell the difference _________ butter and margarine?
Option 1: over
Option 2: with
Option 3: between
Option 4: among
Correct Answer: between
Solution : The correct choice is the third option.
The preposition between is the correct choice in this sentence because it is used to indicate the distinction or comparison between two items, in this case, butter and margarine. When you want to highlight the contrast or
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.
A young man walks toward me with a stick slung across his back and a (1)_______ of sheep at his feet, which carry him down the path (2)______ a crowd of rowdy children. An older man follows, weatherworn but still (3)______, a rifle over his left shoulder. He clicks his tongue to (4)______ the flock. Behind him are two women on horses; I guess (5)______ are his wife and daughter.
Question: Select the most appropriate option to fill in the blank number 2.
Option 1: likeness
Option 2: like
Option 3: likely
Option 4: liking
Correct Answer: like
Solution : The correct choice is the second option.
Like is the appropriate choice according to the context of the sentence. This helps convey the intended meaning that the flock of sheep carried him down, similar to a crowd of rowdy children. Like is used to
Question : Identify the segment that contains a grammatical error. If there is no error, select 'No Error.'
Early, during December 2021, Lal was appointed as / the Secretary to the Lokpal.
Option 1: The Secretary to the Lokpal
Option 2: Early, during December 2021
Option 3: Lal was appointed as
Option 4: No Error
Correct Answer: Early, during December 2021
Solution : The second option is correct.
The error lies in the use of both early and during to indicate the time frame. It's more concise to use early in December 2021 without the additional during.
Therefore, the correct sentence will be: "Early
Question : Directions: Select the option related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term. AR9 : DN81 :: PS4 : SO16 :: MT9 : ?
Option 1: PQ81
Option 2: PR729
Option 3: PP81
Option 4: PP729
Correct Answer: PP81
Solution : Given: AR9 : DN81 :: PS4 : SO16 :: MT9 : ?
Add 3 to the place value of the first letter, subtract 4 from the place value of the second letter, and find the square of the number, to obtain the second term –
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