Staff Selection Commission Combined Graduate Level Exam
Question : Directions: Sonal stands to the north of Amar and the west of Mahi. In which direction is Mahi standing with respect to Amar?
Option 1: South-West
Option 2: North-West
Option 3: North-East
Option 4: South-East
Correct Answer: North-East
Solution : Given: Sonal stands to the north of Amar and to the west of Mahi.
Therefore, Mahi stands North-East of Amar. Hence, the third option is correct.
Question : Directions: By interchanging the given two signs and numbers which of the following equations will be not correct? × and +, 7 and 4 I. 7 × 8 + 4 – 6 ÷ 3 = 57 II. 4 × 8 – 9 ÷ 3 + 7 = 3
Option 1: Only II
Option 2: Only I
Option 3: Neither I nor II
Option 4: Both I and II
Correct Answer: Only II
Solution : Given: × and +, 7 and 4 I. 7 × 8 + 4 – 6 ÷ 3 = 57 II. 4 × 8 – 9 ÷ 3 + 7 = 3
Replacing the given numbers and signs in the options one by one with
Question : The plateau that has both West and East-flowing drainage systems is
Option 1: Malwa
Option 2: Chota Nagpur
Option 3: Ranchi
Option 4: Hazaribagh
Correct Answer: Malwa
Solution : The correct answer is Malwa.
The Malwa Plateau geologically refers to the volcanic highland north of the Vindhya Range. It is connected to both the west and east drainage systems.
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 required’. A sincere person creates goodwill whenever he goes.
Option 1: wherever
Option 2: if ever
Option 3: somewhere
Option 4: No improvement required
Correct Answer: wherever
Solution : The correct choice is the first option.
Explanation: "Wherever" is the appropriate word here, indicating that a sincere person consistently generates goodwill in any place or situation they find themselves in. It signifies a broad range of locations or circumstances.
Therefore, the correct sentence
Question : Select the most appropriate ANTONYM of the given word.
Lament
Option 1: Deplore
Option 2: Decry
Option 3: Celebrate
Option 4: Regret
Correct Answer: Celebrate
Solution : The third option is the correct answer.
Lament means to complain or express grief. A word that is appropriately opposite in meaning is celebrate, which means to acknowledge a happy day or event with an enjoyable activity.
The meanings of the other options are as
Question : How many Indian states share their border with Bangladesh as of 2022?
Option 1: Three
Option 2: Four
Option 3: Six
Option 4: Five
Correct Answer: Five
Solution : The correct answer is Five.
As of 2022, India shares its border with Bangladesh through five Indian states. These states are:
These states are located along the northeastern and eastern borders of India and share a boundary with
Question : The batting average for a cricket player's 40 innings is 50 runs. His highest score in an innings exceeds his lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. The highest score for the player is:
Option 1: 165 runs
Option 2: 170 runs
Option 3: 172 runs
Option 4: 174 runs
Correct Answer: 174 runs
Solution : Let the lowest score in one inning be $x$ runs. Highest score in an inning = ($x$ + 172) runs The average of 40 innings = 50 runs ⇒ Total runs in 40 innings = 40 × 50 = 2000 The average of the
Question : The value of $(1+\sec20°+\cot70°)(1-\operatorname{cosec}20°+\tan70°)$ is equal to:
Option 1: 0
Option 2: 1
Option 3: 2
Option 4: –1
Correct Answer: 2
Solution : Given: $(1+\sec20°+\cot70°)(1 – \operatorname{cosec}20°+\tan70°)$ = $(1+\sec20°+\tan20°)(1-\operatorname{cosec}20°+\cot20°)$ = $(1+\frac{1}{\cos20°}+\frac{\sin20°}{\cos20°})(1–\frac{1}{\sin20°}+\frac{\cos20°}{\sin20°})$ = $(\frac{\cos20°+1+\sin20°}{\cos20°})(\frac{\sin20°–1+\cos20°}{\sin20°})$ = $\frac{(\sin20°+\cos20°)^{2}–1^{2}}{\cos20°\sin20°}$ = $\frac{\sin^{2}20°+\cos^{2}20°+2\sin20°\cos20°–1}{\cos20°\sin20°}$ = $\frac{2\sin20°\cos20°}{\cos20°\sin20°}$ = $2$ Hence, the correct answer is 2.
Question : If $x+\frac{1}{x}=-14$, and $x<-1$, what will be the value of $x^2-\frac{1}{x^2}$?
Option 1: $-112 \sqrt{3}$
Option 2: $112 \sqrt{3}$
Option 3: $-140 \sqrt{2}$
Option 4: $140 \sqrt{2}$
Correct Answer: $112 \sqrt{3}$
Solution : Given, $x+\frac{1}{x}=-14$ Squaring both sides, we get, ⇒ $x^2+\frac{1}{x^2}+2=196$ ⇒ $x^2+\frac{1}{x^2}=196-2=194$ Subtracting 2 from both sides, we get, $x^2+\frac{1}{x^2}-2=194-2$ ⇒ $(x-\frac{1}{x})^2=192$ ⇒ $x-\frac{1}{x}=-\sqrt{192}$ [as $x<-1$] Now $x^2-\frac{1}{x^2}$ $=(x-\frac{1}{x})(x+\frac{1}{x})$ $=(-\sqrt{192})\times (-14)$ $=8\sqrt3\times 14 = 112\sqrt3$ Hence, the correct answer is $112\sqrt3$.
Question : The angles of elevation of the top of a tower from two points at a distance of 4 m and 9 m from the base of the tower and in the same straight line with it are complementary. The height of the tower is:
Option 1: 4 metres
Option 2: 7 metres
Option 3: 9 metres
Option 4: 6 metres
Correct Answer: 6 metres
Solution : Given: The angles of elevation of the top of a tower from two points at a distance of 4 m and 9 m from the base of the tower. $ \angle C$ and $ \angle D$ are complementary. We know that $\tan\theta=\frac{\text{Perpendicular}}{\text{Base}}$ and $\tan
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