Staff Selection Commission Combined Higher Secondary Level Exam
Question : Parts of the following sentence have been given as options. One of them may contain an error. Select the option that contains the error. If you don't find any error, mark 'No Error' as your answer.
Nobody from the gathering of old people could guess the accident occurring blast.
Option 1: the accident occurring blast
Option 2: nobody from the gathering
Option 3: No Error
Option 4: of odd people could guess
Correct Answer: the accident occurring blast
Solution : The first option is correct.
Explanation:
"The accident occurring blast" - This phrase is grammatically incorrect and awkward. It does not clearly convey the intended meaning. It should be replaced with the accident occurring due to the blast.
Question : In $\triangle$ABC, D and E are two points on the sides AB and AC, respectively, so that DE $\parallel$ BC and $\frac{AD}{BD}=\frac{2}{3}$. Then $\frac{\text{Area of trapezium DECB}}{\text{Area of $\triangle$ABC}}$ is equal to:
Option 1: $\frac{5}{9}$
Option 2: $\frac{21}{25}$
Option 3: $1\frac{4}{5}$
Option 4: $5\frac{1}{4}$
Correct Answer: $\frac{21}{25}$
Solution : Given: $\frac{AD}{BD}=\frac{2}{3}$ and DE $\parallel$ BC So, $\triangle$ABC and $\triangle$ADE are similar. ⇒ $\frac{\text{Area of $\triangle$ABC}}{\text{Area of $\triangle$ADE}}=\frac{(AB)^2}{(AD)^2}$ ⇒ $\frac{\text{Area of $\triangle$ABC}}{\text{Area of $\triangle$ADE}}=\frac{(2+3)^2}{(2)^2}=\frac{25}{4}$ Let the area of $\triangle$ABC and $\triangle$ADE be 25k and 4k, respectively. So, the area of trapezium DECB = (Area of
Question : Directions: A bus driver wants to travel a distance of 200 km. He travels at a speed of 40 km/h. He takes rest at 3 different hotels for 15 minutes, 30 minutes and 15 minutes respectively. He starts his journey at 9:00 a.m. At what time does he reach his final destination?
Option 1: 3:00 a.m.
Option 2: 3:00 p.m.
Option 3: 3:30 a.m.
Option 4: 2:30 p.m.
Correct Answer: 3:00 p.m.
Solution : Given: Distance = 200 km Speed = 40 km/h Time = Distance ÷ Speed = 200 ÷ 40 = 5 hours Total time of rest = (15 + 30 + 15) mins = 60 mins Now, convert minutes into hours = 60 ÷ 60
Question : E is the midpoint of the median AD of $\triangle ABC. BE$ is joined and produced to meet AC at F. F divides AC in ratio:
Option 1: 2 : 3
Option 2: 2 : 1
Option 3: 1 : 3
Option 4: 3 : 2
Correct Answer: 2 : 1
Solution : AD is the median. E is the midpoint of AD. DG || BF In $\triangle$BCF, D is the midpoint of BC and DG || BF. $\therefore$ G is the midpoint of CF. $\therefore$ FG = GC In $\triangle$ADG, EF || DG and E
Question : Comprehension:
In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
Generally, dolphins sleep (1)____ only one brain hemisphere in slow-wave sleep at a time, thus (2)_____ enough consciousness to breathe and to watch for possible (3)____ and other threats. Early (4)____ stages can occur simultaneously in both hemispheres. In captivity, dolphins seemingly enter a fully asleep state where both eyes are closed and there is no response to mild external (5)_____.
Question:
Select the most appropriate option to fill in the blank no.3.
Option 1: predators
Option 2: preys
Option 3: carnivorous
Option 4: orators
Correct Answer: predators
Solution : The correct choice is the first option.
Predators are animals who catch and kill for food.
Therefore, the complete sentence is: "thus maintaining enough consciousness to breathe and to watch for possible predators and other threats."
Question : Who was popularly known as the 'father of civil services in India'?
Option 1: Charles Cornwallis
Option 2: William Bentinck
Option 3: Lord Dalhousie
Option 4: John Shore
Correct Answer: Charles Cornwallis
Solution : The correct option is Charles Cornwallis.
The title "father of civil services in India" is often attributed to Sir Charles Cornwallis. He played a significant role in establishing the civil services system in India during the British colonial period. He was the Governor-General
Question : Sulphuric acid is
Option 1: Monobasic
Option 2: Dibasic
Option 3: Tribasic
Option 4: Tetrabasic
Correct Answer: Dibasic
Solution : The correct answer is Dibasic.
Sulphuric acid is dibasic. Any substance or compound which can donate 2 protons or hydrogens is referred to as dibasic acid. Sulphuric acid gives two hydrogen atoms, and that's why it is known as dibasic acid. Sulphuric acid is
Question : A man sells rice at 8% profit and uses weight 25% less than the actual measure. What is his percentage profit?
Option 1: 44%
Option 2: 41%
Option 3: 23%
Option 4: 36%
Correct Answer: 44%
Solution : Here cost price is denoted by CP, selling price is denoted by SP. Let the CP of 100 kg rice be Rs. 100 ⇒ SP of 1 kg = $100 × \frac{100+8}{100}$ ⇒ SP of 1 kg = $100 × \frac{108}{100}$ = Rs. 108 25%
Question : Directions: Select the related letter/number from the given alternatives. RUST : 9687 :: TSUR : ?
Option 1: 7896
Option 2: 7869
Option 3: 7689
Option 4: 6789
Correct Answer: 7869
Solution : Given: RUST : 9687 :: TSUR : ?
On observing the given word it is clear that all the letters of TSUR are present in the given word RUST. So, the codes for the letters of TSUR will be coded as the letters of the
Question : Select the option that can be used as a one-word substitute for the given group of words/phrase.
Spoken or done without preparation
Option 1: Elocution
Option 2: Extempore
Option 3: Debate
Option 4: Declamation
Correct Answer: Extempore
Solution : The correct choice is the second option.
The term extempore comes from the Latin phrase ex tempore, "out of time", and it usually comes up when a performer is improvising or a speaker goes off script or doesn't use a teleprompter.
Therefore, the
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