Staff Selection Commission Combined Graduate Level Exam
Question : A money lender lends Rs. 400 for 3 years to a person and lends Rs. 500 for 4 years to another person at the same rate of simple interest. If he receives Rs.160 as interest, what is the rate of interest per annum?
Option 1: 5%
Option 2: 7%
Option 3: 9%
Option 4: 10%
Correct Answer: 5%
Solution : Let the rate of interest per annum be $r$%. We know, Simple interest = $\frac{\text{Principal × Rate × Time}}{100}$ Here the interest for Rs. 400 for 3 years at $r$% rate is = $\frac{400×r×3}{100} = 12r$ and the interest for Rs. 500 for 4 years
Question : Select the most appropriate option to improve the underlined segment in the given sentence. If there is no need to improve it, select 'No improvement'.
She ran out of her house from frightening.
Option 1: No improvement
Option 2: by frightening
Option 3: in fright
Option 4: from fright
Correct Answer: in fright
Solution : The third option is the correct choice.
The original phrase from frightening is not grammatically correct. In fright is a more appropriate choice to convey that she ran out of her house due to being frightened or scared. The preposition from is not appropriate
Question : The tropical grassland is called
Option 1: pampas
Option 2: llanos
Option 3: Savannah
Option 4: veld
Correct Answer: Savannah
Solution : The correct answer is savannah.
Based on their geographical location grasslands are classified into tropical and temperate grasslands. Tropical grasslands are located between 10 to 20 degree north and south of equator, While temperate grasslands are found between 40 to 55 degree north and south
Question : Who among the following was the chief guest at India's 74th Republic Day celebrations?
Option 1: François Hollande
Option 2: Cyril Ramaphosa
Option 3: Abdel Fattah El-Sisi
Option 4: Jair Bolsonaro
Correct Answer: Abdel Fattah El-Sisi
Solution : The correct answer is Abdel Fattah El-Sisi.
The Indian government has asked Egypt's President Abdel Fattah El-Sisi to be the chief guest at the 74th Republic Day celebrations. Egypt's President El-Sisi will be the country's first principal guest at India's Republic Day celebrations.
Question : Study the given graph and answer the question that follows. In 2020, the production of cement by company C increased by the same percentage as in 2019, over its previous year. The production (in million tonnes) of cement by company C in 2020 (correct to one decimal place) was:
Option 1: 454.6
Option 2: 455.8
Option 3: 457.1
Option 4: 452.4
Correct Answer: 457.1
Solution : Given: Production of cement by company C in 2018 = 350 million tonnes Production of cement by company C in 2019 = 400 million tonnes Now, Percentage increase of production from 2018 to 2019 = $\frac{400\ -\ 350}{350}\times 100= 14.28\%$ Production of cement by company
Question : Select the option that expresses the given sentence in direct speech. Mother said that when we pluck a flower it dies so we should let it beautify the world as long as it lives.
Option 1: Mother says, "When we pluck a flower it dies so we should let it beautify the world as long as it lives."
Option 2: Mother said, "When we pluck a flower it dies so you should let it beautify the world as long as it lived."
Option 3: Mother said, "When we pluck a flower it dies so we should let it beautify the world as long as it lives."
Option 4: Mother said, "When we plucked a flower it died so we should let it beautify the world as long as it lived."
Correct Answer: Mother said, "When we pluck a flower it dies so we should let it beautify the world as long as it lives."
Solution : The correct choice is the third option.
The steps of conversion are as follows:
Question : Addition excessive amounts of heat to a lake is referred to as:
Option 1: Refrigeration effect
Option 2: Green House effect
Option 3: Thermal pollution
Option 4: Heat Bloom
Correct Answer: Thermal pollution
Solution : The correct answer is thermal pollution.
Thermal pollution happens when untreated hot waste water from industries is directly released into the water body and it increases the ambient temperature of water. It is harmful for marine life and organisms which have low tolerance to
Question : Direction: A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in the two matrices, given below. The columns and rows of Matrix (I) are numbered from 0 to 4 and that of Matrix (II) are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g. 'F' can be represented by 30, 23, etc., and 'N' can be represented by 97, 89, etc. Similarly, you have to identify the set for the given word.
DAKU
Option 1: 95, 40, 04, 42
Option 2: 24, 95, 20, 27
Option 3: 88, 24, 10, 34
Option 4: 57, 13, 23, 21
Correct Answer: 57, 13, 23, 21
Solution : Given: DAKU
Number representations of each letter: D → 95, 66, 57, 88, 79 A → 40, 01, 32, 13, 24 K → 10, 31, 42, 23, 04 U → 00, 21, 12, 33, 44
First option: 95, 40, 04, 42 U
Question : Direction: In the following question a word is followed by four other words, one of which can not be formed by using the letters of the given word. Find this word.
INTERNATIONAL
Option 1: ORIENTAL
Option 2: RATIONALE
Option 3: LATTER
Option 4: TERMINAL
Correct Answer: TERMINAL
Solution : Given:
First option: ORIENTAL;
All the letters of the above word are present in the given word INTERNATIONAL.
Second option: RATIONALE;
Third option: LATTER;
All the letters of the above
Question : On the ground, there is a vertical tower with a flagpole on its top. At a point 9 metres away from the foot of the tower, the angles of elevation of the top and bottom of the flagpole are 60° and 30°, respectively. The height of the flagpole is:
Option 1: $5\sqrt{3}$ metres
Option 2: $6\sqrt{3}$ metres
Option 3: $6\sqrt{2}$ metres
Option 4: $6\sqrt{5}$ metres
Correct Answer: $6\sqrt{3}$ metres
Solution : In the figure, the flagpole is AB, BC is the tower and CD is the base. In $\triangle$ACD, $⇒\tan 60°=\frac{\text{AC}}{\text{DC}}$ $⇒\sqrt{3}=\frac{\text{AC}}{9}$ $⇒\text{AC}=9\sqrt{3}$ metres In $\triangle$BCD, $⇒\tan 30°=\frac{\text{BC}}{\text{DC}}$ $⇒\frac{1}{\sqrt{3}}=\frac{\text{BC}}{9}$ $⇒\text{BC}=\frac{9}{\sqrt{3}} = 3\sqrt{3}$ metres $⇒\text{AC = AB + BC}$ $⇒\text{AB = AC – BC}$ $⇒\text{AB} =
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