Staff Selection Commission Multi Tasking Staff Exam
Question : Find the compound interest (CI) on Rs. 12,600 for 2 years at 10% per annum compounded annually.
Option 1: Rs. 3,146
Option 2: Rs. 2,646
Option 3: Rs. 3,646
Option 4: Rs. 2,645
Correct Answer: Rs. 2,646
Solution : Find the compound interest (CI) on Rs. 12,600 for 2 years at 10% per annum compounded annually. Here, principle (P) = Rs. 12,600 Time (T) = 2 years Rate of interest (R) = 10% So, the compound interest = $P(1+\frac{R}{100})^T-P$ = $12600(1+\frac{10}{100})^2-12600$ = $15246-12600$
Question : Seed dormancy is regulated by
Option 1: Abscisic Acid
Option 2: Gibberellic Acid
Option 3: Indole Acetic Acid
Option 4: Ethylene
Correct Answer: Abscisic Acid
Solution : The answer is Abscisic acid.
Abscisic acid is essential in managing seed dormancy, a state of ceased development and metabolic activity that stops seeds from sprouting under unfavourable conditions. Abscisic acid is created in seeds in response to environmental signals such as a
Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 720, 720, 360, 120, 30, 6, ___?
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 5
Correct Answer: 1
Solution : Given: 720, 720, 360, 120, 30, 6, ___?
Divide the number by consecutive natural numbers starting from one to get the next number. 720 ÷ 1 = 720, 720 ÷ 2 = 360, 360 ÷ 3 = 120, 120 ÷ 4 = 30, 30 ÷
Question : Directions: Two Statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements Statements: All carrots are vegetables. Some vegetables are snacks. Conclusions: I. All vegetables are carrots. II. All carrots are snacks.
Option 1: Only conclusion I follows
Option 2: Only conclusion II follows
Option 3: Neither conclusion I nor II follows
Option 4: Both conclusions I and II follow
Correct Answer: Neither conclusion I nor II follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): All vegetables are carrots – From the Venn diagram, it is evident that some parts of the circle representing vegetables
Question : The following pie chart shows the percentage number of students who play different sports. If the total number of students is 500, then how many students play cricket?
Option 1: 125
Option 2: 95
Option 3: 105
Option 4: 115
Correct Answer: 105
Solution : Given: The total number of students is 500. The number of students who play cricket is 21% of 500 = $\frac{21}{100}$ × 500 = 105 Hence, the correct answer is 105.
Question : Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
More (1) ______ half the States (2) ______ Union Territories, including Covid-19 hotspots Maharashtra and Tamil Nadu, have not yet decided on a date (3) ______reopening schools, the Centre was told at a meeting. The remaining States are split between those (4) ______ to reopen in August, (5) ______ include Delhi and Bihar, and others who will not open until September, such as Andhra Pradesh, Karnataka and Kerala.
Question: Select the most appropriate option to fill in the blank number 3.
Option 1: at
Option 2: since
Option 3: for
Option 4: from
Correct Answer: for
Solution : The third option is the correct answer.
Using "for" in this context creates a logical connection between the fact that more than half the States and Union Territories have not decided on a date and the reason or purpose behind this indecision, which is reopening
Question : When 8 is added to the numerator of a fraction and 12 is added to its denominator, the fraction becomes $\frac{1}{2}$. When 2 is subtracted from its numerator and denominator, the fraction becomes $\frac{1}{8}$. Find the original fraction.
Option 1: $\frac{9}{19}$
Option 2: $\frac{3}{10}$
Option 3: $\frac{4}{7}$
Option 4: $\frac{5}{11}$
Correct Answer: $\frac{3}{10}$
Solution : Let the original fraction be $\frac{x}{y}$ where $x$ and $y$ are the numerator and denominator, respectively. According to the question, $\frac{x+8}{y+12}=\frac{1}{2}$ ⇒ $2x+16=y+12$ ⇒ $2x+4=y$ (equation 1) When 2 is subtracted from its numerator and denominator, the fraction becomes $\frac{1}{8}$. $\frac{x–2}{y–2}=\frac{1}{8}$ ⇒ $8x-16=y-2$ ⇒ $y=8x-14$
Question : The first urban settlement to reach a population of one million was ______.
Option 1: New York
Option 2: London
Option 3: Berlin
Option 4: Tokyo
Correct Answer: London
Solution : The correct option is London.
In the 19th century, London became the first city in more contemporary times to have a million people. Around the turn of the 19th century, London's population exceeded a million due to urbanisation, industrialisation, and other causes related to
Question : Select the most appropriate option to substitute the bracketed segment in the given sentence. If there is no need to substitute it, select 'no substitution required'.
It is expected that this police power will only apply to air and (sea routes between the Great Britain and the Northern Ireland).
Option 1: sea routes across the Great Britain and Northern Ireland
Option 2: sea routes across the Great Britain and the Northern Ireland
Option 3: sea routes between Great Britain and Northern Ireland
Option 4: No substitution required
Correct Answer: sea routes between Great Britain and Northern Ireland
Solution : The correct choice is the third option.
Explanation:
When referring to countries, continents, states, or regions by their proper names, it's common to omit the definite article ("the"). Great Britain and Northern Ireland are proper nouns denoting specific
Question : A leaves station P at 8:00 a.m. and reaches station Q at 11:00 a.m. B leaves Station Q at 9:00 a.m. and reaches Station P at 11:00 a.m. At what time will they cross each other?
Option 1: 10:00 a.m.
Option 2: 10:05 a.m.
Option 3: 9:48 a.m.
Option 4: 9:52 a.m.
Correct Answer: 9:48 a.m.
Solution : A leaves station P at 8:00 a.m. and reaches station Q at 11:00 a.m ⇒ Time taken by A = 3 hrs B leaves Station Q at 9:00 a.m. and reaches Station P at 11:00 a.m ⇒ Time taken by B = 2 hrs
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