Staff Selection Commission Combined Higher Secondary Level Exam
Question : IBM System 360 was developed in which of the following generations of computers?
Option 1: Second generation
Option 2: First generation
Option 3: Third generation
Option 4: Fourth generation
Correct Answer: Third generation
Solution : The correct option is the Third generation.
The IBM System 360, commonly known as the IBM 360, was developed in the third generation of computers. It was a groundbreaking series of mainframe computers introduced by IBM in 1964. The IBM 360 series was
Question : Study the given table and answer the question that follows. The table represents the mathematics marks of five students.
What is the average mark?
Option 1: 77
Option 2: 80
Option 3: 81
Option 4: 78
Correct Answer: 81
Solution : Average = $\frac{\text{Sum of terms}}{\text{Number of terms}}$ Average marks = $\frac{85+72+70+84+94}{5}$ = $\frac{405}{5}$ = 81 Hence, the correct answer is 81.
Question : What is the value of $(x+1)\left(x^2-x+1\right)$ ?
Option 1: $x^3-1$
Option 2: ${x}^3+{x}$
Option 3: $x^3+1$
Option 4: ${x}^3-{x}$
Correct Answer: $x^3+1$
Solution : Given: $(x+1)\left(x^2-x+1\right)$ $= x^3 - x^2 + x + x^2 - x + 1$ $=x^3 + 1$ Hence, the correct answer is $x^3 + 1$.
Question : Which of the following two teams played in the final match of season 8 of PKL?
Option 1: Dabang Delhi vs. Patna Pirates
Option 2: Bengal Warriors vs. Patna Pirates
Option 3: Dabang Delhi vs. Bengal Warriors
Option 4: Dabang Delhi vs. Bengaluru Bulls
Correct Answer: Dabang Delhi vs. Patna Pirates
Solution : The correct option is Dabang Delhi vs. Patna Pirates.
Dabang Delhi and Patna Pirates faced off in the final match of season 8 of the Pro Kabaddi League, held in Bengaluru on Friday, 2022-02-18. Dabang Delhi ultimately emerged victorious with a
Question : If $x^{3}+2x^{2}-5x+k$ is divisible by $x+1$, then what is the value of $k$?
Option 1: –6
Option 2: –1
Option 3: 0
Option 4: 6
Correct Answer: –6
Solution : Given: $f(x)=x^3+2x^2-5x+k=0$ is divisible by $x+1$. So, $ x^3+2x^2-5x+k=0$ when $x=-1$ ⇒ $ (-1)^3+2(-1)^2-5(-1)+k=0$ ⇒ $-1+2+5+k=0$ ⇒ $ k = -6$ Hence, the correct answer is –6.
Question : Directions: In the following question, select the related letters from the given alternatives. RT : QR :: ZO : ?
Option 1: ZZ
Option 2: YY
Option 3: NO
Option 4: YM
Correct Answer: YM
Solution : Given: RT : QR :: ZO : ?
Subtract 1 and 2 from the place value of the first and the second letter respectively, to get the required missing term – Like, RT : QR→ R – 1 = Q; T – 2 = R
Question : Directions: What should come in place of (X) in the given series? 4, 11, 25, 46, 74, (X)
Option 1: 105
Option 2: 109
Option 3: 111
Option 4: 115
Correct Answer: 109
Solution : Given: 4, 11, 25, 46, 74, (X)
Add the consecutive multiples of 7 to the previous numbers, to obtain the next numbers of the series. 4 + 7 = 11; 11 + 14 = 25; 25 + 21 = 46; 46 + 28 = 74;
Question : A man spends Rs. 2,300 monthly on average for the first four months and Rs. 1,800 monthly for the next eight months and saves Rs. 12,400 a year. Find his monthly income.
Option 1: Rs. 3,000
Option 2: Rs. 2,400
Option 3: Rs. 2,200
Option 4: Rs. 2,100
Correct Answer: Rs. 3,000
Solution : Given, Average monthly expenditure for the first 4 months = Rs. 2,300 $\therefore$ Total expenditure for the first 4 months = 4 × 2,300 = Rs. 9,200 Average monthly expenditure for the next 8 months = Rs. 1,800 $\therefore$ Total expenditure for the next
Question : Which among the following is a flat bone?
Option 1: Ankle bones
Option 2: Pelvic bones
Option 3: Wrist bones
Option 4: Ribs
Correct Answer: Ribs
Solution : The correct answer is Ribs.
Flat bones serve primarily as large surfaces for muscular attachment or as a means of providing extensive protection. The ischium, pubis, sternum, rib cage, and cranium (skull) are examples of bones that have grown into broad, flat plates. The
Question : The length and breadth of a rectangular field in the ratio of $7:4$. A path $4\operatorname{ m }$ wide running all around outside has an area of $416\operatorname{ m^2 }$. The breadth (in $\operatorname{m }$) of the field is:
Option 1: 28
Option 2: 14
Option 3: 15
Option 4: 16
Correct Answer: 16
Solution : If a path of $x$ m wide runs around a rectangular field having $l$ as the length and $b$ as the breadth then, Area of path = $2x(l+b+2x)$ We have the length and breadth of a rectangular field in the ratio of $7:4$. A path
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