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Staff Selection Commission Multi Tasking Staff Exam

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Question : What is the compound interest on INR 10000 in 1 year 6 months at 10% per annum, the interest being compounded half-yearly?

Option 1: INR 1625.50

Option 2: INR 1576.25

Option 3: INR 1826.50

Option 4: INR 1422.25

Team Careers360 27th Jan, 2024

Correct Answer: INR 1576.25


Solution : Rate, $R$ = 10%
Term, $n$ = 1 year
Principal sum, $P$ = INR 10000
When compounded half-yearly,
Amount = $P(1+\frac{R}{200})^{2n}$
Compound interest = $P(1+\frac{R}{200})^{2n}-P$
= $10000(1+\frac{10}{200})^{2×1.5}-10000$
= $10000(1+\frac{1}{20})^{3}-10000$
= $10000(\frac{21}{20})^{3}-10000$
= $10000(\frac{21^3}{20^3}-1)$
= $10000(\frac{21^3-20^3}{8000})$
= $\frac{10000×(441+400+420)×1}{8000}$
= $\frac{12610}{8}$
= INR $1576.25$
Hence, the correct answer is INR 1576.25.

20 Views

Question : In which of the following events did India not win any medal at the Summer Olympics 2020 (played in 2021)?

Option 1: Men's hockey.

Option 2: Women's singles badminton.

Option 3: Men's javelin throw.

Option 4: Women's hockey.

Team Careers360 27th Jan, 2024

Correct Answer: Women's hockey.


Solution : The correct answer is women's hockey.

India did not take home any medals from the women's hockey competitions at the 2020 Summer Olympics. India secured medals in events like weightlifting, wrestling, badminton and athletics. Notable achievements included Mirabai Chanu winning silver in weightlifting and Neeraj Chopra clinching gold in javelin throw.

54 Views

Question : 80 litres of a mixture of alcohol and water contains 60% alcohol. If 'X' litres of water is added to this mixture, then the alcohol percentage in the new mixture becomes 40%. What is the value of 'X'?

Option 1: 20

Option 2: 80

Option 3: 40

Option 4: 60

Team Careers360 26th Jan, 2024

Correct Answer: 40


Solution : Given,
The mixture of alcohol and water = 80 litres
Initial alcohol concentration = 60%
Amount of alcohol in 80 litres of mixture = 60% of 80
= $\frac{60}{100}\times80$ = 48 litres
Also, 40 percent alcohol in the new mixture after the addition of X litres of water.
So, according to the question,
48 = $\frac{40}{100}$ × (80 + X)
⇒ 48 = $\frac{2}{5}$ (80 + X)
⇒ 240 = 2(80 + X)
⇒ 240 = 160 + 2X
⇒ 2X = 80
⇒ X = 40
Hence, the correct answer is 40.

16 Views

Question : The term 'Green Revolution' was coined by

Option 1: William Gaud

Option 2: Charles Elton

Option 3: Eugene Odum

Option 4: M. S. Swaminathan

Team Careers360 26th Jan, 2024

Correct Answer: William Gaud


Solution : The answer is William Gaud.

On March 8, 1968, William S. Gaud, the administrator of the U.S. Agency for International Development (USAID), introduced the term "Green Revolution." In his speech, he highlighted the proliferation of these novel technologies in agriculture, stating that they harboured the potential for a transformative agricultural revolution.

14 Views

Question : Which of the following articles of the Indian Constitution mentions the fundamental duty of "sovereignty, unity and integrity of India"?

Option 1: Article 51A (b)

Option 2: Article 51A (e)

Option 3: Article 51A (c)

Option 4: Article 51A (d)

Team Careers360 26th Jan, 2024

Correct Answer: Article 51A (c)


Solution : The correct option is Article 51A (c).

Article 51A(c) of the Indian Constitution outlines one of the fundamental duties of citizens. This clause emphasises the responsibility of citizens to contribute to the safeguarding of the sovereignty, unity, and integrity of the nation. The inclusion of fundamental duties in the Constitution is aimed at promoting a sense of responsibility and commitment among citizens towards the larger goals of the nation.

4 Views

Question : The pie chart given below shows the number of teachers in five universities. The total number of teachers in all these five universities is 720. The number of teachers in a particular university is shown in terms of degree with respect to the total number of teachers in all these five universities.


J1 = The value of the average number of teachers in B and C
J2 = The value of the average number of teachers in A and E
What is the value of (J2 + J1)?

Option 1: 210

Option 2: 290

Option 3: 250

Option 4: 240

Team Careers360 27th Jan, 2024

Correct Answer: 290


Solution : The total number of teachers in all these five universities is 720.
J1 = The value of the average number of teachers in B and C
From the given pie- chart,
⇒ Number of teachers in University B $=\frac{30°}{360°}\times720=60$
⇒ Number of teachers in University C $=\frac{120°}{360°}\times720=240$
$\therefore$ Average $=\frac{60+240}{2}=150$
J2 = The value of the average number of teachers in A and E
⇒ Number of teachers in University A $=\frac{40°}{360°}\times720=80$
⇒ Number of teachers in University E $=\frac{100°}{360°}\times720=200$
$\therefore$ Average $=\frac{200+80}{2}=140$
So, J2 + J1 = 150 + 140 = 290
Hence, the correct answer is 290.

17 Views

Question : Study the given table and answer the question that follows.
The table below shows the percentage distribution of students from five different colleges in various disciplines.

DISCIPLINES COLLEGES
P Q R S T
SCIENCE 25 35 45 28 35
ECONOMICS 45 40 15 42 25
MATHEMATICS 30 25 40 30 40

TOTAL
NUMBER OF
STUDENTS

8000 10000 15000 9000 11000

Students from the discipline of mathematics in colleges P and R taken together is what percentage of the total number of students in colleges P and R taken together? [Give your answer correct to one decimal place.]

Option 1: 36.9%

Option 2: 36.5%

Option 3: 37.2%

Option 4: 37.5%

Team Careers360 27th Jan, 2024

Correct Answer: 36.5%


Solution :  Total students in P and R = Students in P + Students in R
=  8000 + 15000 = 23000
Students in Mathematics in P and R =
=  30% of 8000 + 40% of 15000
=  0.3 × 8000 + 0.4 × 15000
=  2400 + 6000 = 8400
Required percentage = $\frac{\text{Students in Mathematics in P and R​}}{\text{Total students in P and R}}$×100%
= $\frac{\text{8400​}}{\text{23000}}$×100%
= 36.5%
Hence, the correct answer is 36.5%.

14 Views

Question : In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.
To work against the clock.

Option 1: To fill one with terror

Option 2: To work fast

Option 3: To die while still working

Option 4: To move anti-clockwise

Team Careers360 27th Jan, 2024

Correct Answer: To work fast


Solution : The second option is correct.

The given idiom, work against the clock, means to do it as fast as possible and try to finish it before a certain time.

Therefore, the correct answer is to work fast.

18 Views

Question : As per Census 2011, what is the Total Fertility Rate (an approximate range) in India?

Option 1: 3.1-3.9

Option 2: 2.1-2.9

Option 3: 5.1-5.9

Option 4: 4.1-4.9

Team Careers360 26th Jan, 2024

Correct Answer: 2.1-2.9


Solution : The correct answer is 2.1-2.9.

According to the 2011 Census, India's Total Fertility Rate (TFR)* was 2.4 per woman. The majority of Indian states now have fertility rates far below the replacement level of 2.1, and the nation is rapidly reaching the replacement level itself, according to recent research and surveys.

5 Views

Question : Which country is the only country in the world to have both tigers and lions?

Option 1: Kenya

Option 2: South Africa

Option 3: India

Option 4: China

Team Careers360 26th Jan, 2024

Correct Answer: India


Solution : The correct answer is India.

With its lush meadows and tropical woods, India is the only country in the world where one may witness both tigers and lions roaming freely. The country is home to both species, but they never come into contact in the wild because lions are restricted to Gir Forest National Park.

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