Staff Selection Commission Multi Tasking Staff Exam
Question : Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct. It is the most effective means of mass communication.
Option 1: a most effecting
Option 2: a most effectives
Option 3: the most effectively
Option 4: No improvement
Correct Answer: No improvement
Solution : The fourth option is the correct choice.
The original sentence is already grammatically correct. It uses the superlative form the most effective to convey that the means of mass communication being discussed is the most efficient or successful among various options.
Therefore, no improvement
Question : The following pie chart shows the share of the marks scored by Rahul in an examination in each of 5 different subjects - English, Hindi, Mathematics, Science and Social Science - as percentages of the total marks scored by Rahul in all the 5 subjects taken together. What is the central angle showing the shares of the marks in Hindi and Social Science, taken together?
Option 1: $186^\circ$
Option 2: $196^\circ$
Option 3: $144^\circ$
Option 4: $172^\circ$
Correct Answer: $144^\circ$
Solution : Given: Total marks = 100% Marks scored in Hindi = 24% Marks scored in social science = 16% Sum of marks scored in both = 24% + 16% = 40% Central angle $=\frac{\text{Sum of marks in Hindi and social science}}{\text{Total marks}}\times360^\circ=\frac{40}{100}\times360^\circ=144^\circ$ Hence, the correct answer
Question : The following table shows the number of watches of 5 brands sold by two showrooms.
M = per brand average number of watches sold from Showroom 1. What is the ratio of the number of watches of Brand 3 sold from Showroom 2 to M?
Option 1: 27 : 31
Option 2: 28 : 37
Option 3: 25 : 29
Option 4: 26 : 33
Correct Answer: 25 : 29
Solution : From the table, the total number of watches sold by Showroom 1 = 60 + 55 + 75 + 48 + 52 = 290 watches Since there are 5 brands. The average number of watches sold per brand from Showroom 1, M =
Question : How much time will it take for an amount of Rs. 450 to yield Rs. 47.25 as interest at 3.5% per annum of simple interest?
Option 1: 1 year
Option 2: 2 years
Option 3: 3 years
Option 4: 4 years
Correct Answer: 3 years
Solution : Given: Principal = Rs. 450 Simple interest = Rs. 47.25 Rate = 3.5% We know that, Simple interest = $\frac{\text{Principal × Rate × Time}}{100}$ ⇒ $47.25 = \frac{\text{450 × 3.5 × Time}}{100}$ ⇒ Time = $\frac{47.25\times100}{450\times3.5}$ ⇒ Time = $\frac{4725}{1575}=3$ years Hence, the correct
Question : The radius of a right circular cylinder is thrice of its height. If the height of the cylinder is 3.5 cm, what is the volume of the cylinder?
Option 1: 1124.25 cm3
Option 2: 1324.75 cm3
Option 3: 1468.25 cm3
Option 4: 1212.75 cm3
Correct Answer: 1212.75 cm3
Solution : The height of the cylinder, $h$ = 3.5 cm So, radius, $r$ = 3.5 × 3 = 10.5 cm Now, the volume of the cylinder = $\pi r^2 h=\frac{22}{7}×(10.5)^2×3.5=1212.75\ \text{cm}^3$ Hence, the correct answer is 1212.75 cm3.
Question : Directions: Select the option figure in which the given figure (X) is embedded as its part (Rotation is NOT allowed).
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of all the option figures, the given question figure is embedded only in the third option figure.
Hence, the third option is correct.
Question : Directions: Select the option that is 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. AR37 : DW44 :: PQ43 : SV50 :: GF31 : ?
Option 1: JJ38
Option 2: KK38
Option 3: JK38
Option 4: KM38
Correct Answer: JK38
Solution : Given: AR37 : DW44 :: PQ43 : SV50 :: GF31 :?
Like, AR37 : DW44→A(1) + 3 = D; R(18) + 5 = W; 37 + 7 = 44 And, PQ43 : SV50→P(16) + 3 = S; Q(17) + 5 = V; 43 + 7
Question : Fern is an example of which plant group?
Option 1: Phanerogams
Option 2: Bryophyta
Option 3: Pteridophyta
Option 4: Thallophyta
Correct Answer: Pteridophyta
Solution : The correct answer is Pteridophyta.
Ferns are an example of Pteridophyta, they possess well-defined roots, leaves and stems and have a well-developed vascular system. Pteridophyta are a kind of plants which have neither flowers nor seeds. Ferns belong to the plant group Pteridophyta, characterized
Question : In a room, there are 36 women and 20 men. What is the ratio of men to the total number of people in that room?
Option 1: 14 : 11
Option 2: 5 : 14
Option 3: 5 : 11
Option 4: 5 : 13
Correct Answer: 5 : 14
Solution : The total number of people in the room is the sum of the number of women and men = 36 + 20 = 56 $\therefore$ The ratio of men to the total number of people in the room = $\frac{20}{56}$ = $\frac{5}{14}$ Hence,
Question : The difference between compound interest (compounding annually) and simple interest on a sum at the rate of 30% per annum for 2 years is INR 3,600. What is the sum?
Option 1: INR 75,000
Option 2: INR 40,000
Option 3: INR 50,000
Option 4: INR 60,000
Correct Answer: INR 40,000
Solution : Difference between compound interest (compounding annually) and simple interest = INR 3600 Rate, $R$ = 30% Term = 2 years Let $P$ be the principal sum. Difference between compound interest (compounding annually) and simple interest for 2 years $=P×(\frac{R}{100})^2$ $⇒ 3600 = P×(\frac{30}{100})^2$ $⇒
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