Staff Selection Commission Combined Graduate Level Exam
Question : Shivkumar Sharma is famous for playing the
Option 1: Sitar
Option 2: Flute
Option 3: Santoor
Option 4: Tabla
Correct Answer: Santoor
Solution : The correct option is Santoor
Pandit Shiv Kumar Sharma was born in 1938 in Jammu. He was a famous Indian musician and Santoor player. It is believed that it was hiim who first used Santoor and included it in Indian classical music. He partnered with
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. 5, 9, 13, 17, ?, 25
Option 1: 27
Option 2: 23
Option 3: 21
Option 4: 19
Correct Answer: 21
Solution : Given: 5, 9, 13, 17, ?, 25
In the given series, add 4 to the previous term to get the next term. 5 + 4 = 9; 9 + 4 = 13; 13 + 4 = 17; 17 + 4 = 21; 21 + 4
Question : Hydrogen bomb is based on the principle of
Option 1: controlled fission reaction
Option 2: uncontrolled fission reaction
Option 3: controlled fusion reaction
Option 4: uncontrolled fusion reaction
Correct Answer: uncontrolled fusion reaction
Solution : The correct answer is uncontrolled fusion reaction.
The theory of uncontrolled nuclear fusion underpins a hydrogen bomb. The process by which the nuclei of two light atoms join to generate a new nucleus is known as nuclear fusion.
Question : A sum becomes Rs.15,500 in 7 years on simple interest at the rate of 30 percent per annum. What is the total interest for the 7 years?
Option 1: Rs. 12,200
Option 2: Rs. 1,47,000
Option 3: Rs. 10,500
Option 4: Rs. 11,500
Correct Answer: Rs. 10,500
Solution : Given, Sum= Rs. 15500 Rate of interest (r) = 30% per annum Time (t) = 7 years Let the principal be P. ⇒ [P + (simple interest)] = sum ⇒ [P + $\frac{\text{Prt}}{100}$] = sum ⇒ [P + $\frac{\text{P} × 30 × 7}{100}$] =
Question : The total cost of a dishwasher and a vacuum cleaner was INR 78,750. The vacuum cleaner was sold at a profit of 37% and the dishwasher at a loss of 23%. If the selling price was the same for both items, then the cost price of the cheaper item was:
Option 1: INR 51,375
Option 2: INR 29,375
Option 3: INR 30,750
Option 4: INR 28,335
Correct Answer: INR 28,335
Solution : Let the cost price of the dishwater and vacuum cleaner be INR $y$ and INR $x$, respectively. Total cost price of a dishwasher and a vacuum cleaner = INR 78,750 $x$ + $y$ = $78750$-------------------(i) Profit of vacuum cleaner = 37% of $x$ =
Question : $x$ does $\frac{1}{4}$ of a job in 6 days. $y$ completes the rest of the job in 12 days. Then $x$ and $y$ could complete the job together in:
Option 1: $9$ days
Option 2: $9\frac{3}{5}$ days
Option 3: $8\frac{1}{8}$ days
Option 4: $7\frac{1}{3}$ days
Correct Answer: $9\frac{3}{5}$ days
Solution : Time taken by $x$ to complete $\frac{1}{4}$ of a job = 6 days Time taken by $x$ to complete whole work = 6 × 4 = 24 days Part of work done by $x$ in a day = $\frac{1}{24}$ Time taken by $y$ to
Question : Select the most appropriate ANTONYM of the word "established" from the given sentence: Siben feels great satisfaction and gratified when he finds his pupils established successfully in the society when a lot have been displaced because of several failed attempts.
Option 1: displaced
Option 2: fail
Option 3: gratified
Option 4: pupils
Correct Answer: displaced
Solution : The right option is the first option.
Established implies being settled, well-founded, or having achieved success, while displaced means being removed, unsettled, or forced to leave a place, which is its antonym in this context.
So, the meanings of the other given words are:
Question : If $\sqrt{11-3 \sqrt{8}}=a+b \sqrt{2}$, then what is the value of (2a + 3b) ?
Option 1: 7
Option 2: 9
Option 3: 3
Option 4: 5
Correct Answer: 3
Solution : Given: $\sqrt{11-3 \sqrt{8}}=a+b \sqrt{2}$ ⇒ $\sqrt{11-3 \sqrt{2\times2\times2}}=a+b \sqrt{2}$ ⇒ $\sqrt{9+2-2×3\sqrt{2}}=a+b \sqrt{2}$ ⇒ $\sqrt{(3)^2+(\sqrt2)^2-2\times3\sqrt{2}}=a+b \sqrt{2}$ ⇒ $\sqrt{(3-\sqrt{2})^2}=a+b \sqrt{2}$ ⇒ $3-\sqrt{2}=a+b \sqrt{2}$ Comparing both sides, we get, $a=3,b=-1$ Now, $(2a+3b)$ = $(2\times3+3\times(-1))$ = $3$ Hence, the correct answer is 3.
Question : Select the most appropriate option that can substitute the underlined segment in the given sentence.
He was looking into his book for the last two hours but couldn't find it.
Option 1: looking down on his book
Option 2: looking above his book
Option 3: looking for his book
Option 4: looking after his book
Correct Answer: looking for his book
Solution : The correct choice is the third option.
In this context, looking for is the correct phrase to convey the idea of searching for his book. The preposition for is used with the verb looking to indicate the purpose or direction of
Question : A shopkeeper sold an item at 10% loss after giving a discount equal to half the marked price. Then the cost price is:
Option 1: $\frac{1}{9}$th of the marked price
Option 2: $\frac{4}{9}$th of the marked price
Option 3: $\frac{5}{9}$th of the marked price
Option 4: $\frac{7}{9}$th of the marked price
Correct Answer: $\frac{5}{9}$th of the marked price
Solution : Let the marked price = $p$ and the cost price = $q$ According to the question, ∴ 50% of $p$ = 90% of $q$ ⇒ $\frac{p×50}{100}=\frac{q×90}{100}$ ∴ $q=\frac{5}{9}p$ So, the cost price is $\frac{5}{9}$th of the marked price. Hence, the correct
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