Staff Selection Commission Combined Graduate Level Exam
Question : In $\triangle$XYZ, P is the incentre of the $\triangle$XYZ. If $\angle$XYZ = 50°, then what is the value of $\angle$XPZ?
Option 1: 100°
Option 2: 115°
Option 3: 140°
Option 4: 130°
Correct Answer: 115°
Solution :
According to the formula, $\angle XPZ = 90° + \frac{50°}{2}$ $\therefore \angle XPZ = 90° + 25° = 115°$ Hence, the correct answer is 115°.
Question : Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
The modern world (1) ________ around technology. It has advanced dramatically in the beyond twenty years, and presently, we can't envision a world without PCs and cell phones. The last century saw fast progressions in innovation and science, which were unfathomable previously. The internet is perhaps the most significant of these. Today, it is no longer a science fiction concept to communicate with people anywhere in the world. While smartphones keep us constantly connected to the virtual world, the wireless internet has eliminated the need to use a physical wire to connect with this world. Today, we rely on the Internet to pay our bills, book tickets, travel, and conduct banking transactions. Li-Fi, a new technology that uses light signals to (2) ________ data and reduces external interference, is currently in development. On the other hand, such rapid progress comes with some (3) ________. Another sort of wrongdoing, known as digital wrongdoing, is the greatest danger to security today. WannaCry was one of the biggest recent cyberattacks. It infected more than 230,000 computers in over 150 countries and threatened to erase valuable data unless ransom payments were made. Personal and (4) ________ data continue to be stolen frequently, and our country's cyber security is still lacking. It's also possible to say that people miss out on important experiences in the real world because they spend so much time in the virtual world. The distinction between the real and online worlds sometimes appears to blur, especially as social media grows in popularity. For instance, the internet was said to have become so addictive in China that programmes were established to help people get off of it. However, technology's benefits (5)________ its drawbacks. It all comes down to what we do with it. One thing to keep in mind is that technology can serve us well, but not completely.
Select the most appropriate option to fill in the blank no. 5.
Option 1: balances
Option 2: shadows
Option 3: outweigh
Option 4: insides
Correct Answer: outweigh
Solution : The most appropriate choice is the third option.
Outweigh means to have more significance than the other. The sentence discusses the balance between the benefits and drawbacks of technology, emphasising that the benefits are greater or more significant than the drawbacks.
Question : Prakash lends a part of Rs. 20,000 at 8% simple interest and the remaining at $\frac{4}{3}\%$ simple interest. His total income after a year was Rs. 800. Find the sum lent at 8%.
Option 1: Rs. 8,000
Option 2: Rs. 12,000
Option 3: Rs. 6,000
Option 4: Rs. 10,000
Correct Answer: Rs. 8,000
Solution : The total income from the two parts of the sum after a year is equal to Rs. 800. Let the sum lent at 8% as $x$. The remaining sum, which is lent at $\frac{4}{3}\%$, is $(20000 - x)$. Use: Simple Interest = $\frac{\text{Principal ×
Question : Simplify $\frac{1 + \sin t}{4 - 4 \sin t} - \frac{1 - \sin t}{4 + 4 \sin t}$.
Option 1: $4\tan t .\sin t$
Option 2: $\tan t . \sec t$
Option 3: $\tan t - \sin t$
Option 4: $\tan t + \sin t$
Correct Answer: $\tan t . \sec t$
Solution : Given: $\frac{1 + \sin t}{4 -4\sin t} - \frac{1 - \sin t}{4 + 4\sin t}$ $=\frac{1 + \sin t}{4(1 - \sin t)} - \frac{1 - \sin t}{4(1 + \sin t)}$ $=\frac{(1 + \sin t)^{2} - (1 - \sin t)^{2}}{4 × (1+
Question : Directions: The following equations have been solved based on a certain pattern. Find the correct answer for the unsolved equation on that basis. If 7 * 4 * 3 = 437, 8 * 6 * 4 = 648, then 4 * 3 * 6 = ?
Option 1: 346
Option 2: 364
Option 3: 643
Option 4: 463
Correct Answer: 364
Solution : Given: 7 * 4 * 3 = 437 8 * 6 * 4 = 648
Here, the numbers given in the equation are shuffled in a particular order, i.e., the second number replaces the first number, the third number replaces the second number, and the
Question : A thief stole jewelry from a shop at 8:15 p.m. and left on a bike at a speed of 60 km/hr. The police were informed at 8:30 p.m. If the police want to arrest the thief at 9:00 p.m., what should be the minimum speed of the police jeep?
Option 1: 60 km/hr
Option 2: 75 km/hr
Option 3: 80 km/hr
Option 4: 90 km/hr
Correct Answer: 90 km/hr
Solution : Total time travelled by the thief = 9:00 - 8:15 = 45 min = $\frac{3}{4}$ hour Speed of thief = 60 km/hr Distance travelled = 60 × $\frac{3}{4}$ = 45 km Total time travelled by the thief = 9:00 - 8:30 = 30 min
Question : A batsman scores 98 runs in the 17th match of his career. His average runs per match increased by 2.5. What was his average before the 17th match?
Option 1: 58
Option 2: 60.5
Option 3: 63
Option 4: 55.5
Correct Answer: 55.5
Solution : Let the average before the 17th match be $x$. New average after 17th match = $x$ + 2.5 Runs scored in the 17th match = 98 runs Total runs before the 17th match = 16$x$ ⇒ 16$x$ + 98 = ($x$
Question : Direction: In this question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2), and (3) which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
Your long-awaited reply came through yesterday.
(1) came in
(2) came up
(3) came out
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The correct choice is the fourth option.
The sentence is grammatically accurate, and the correct phrasal verb "came through", which means to do something successfully that was promised, is used.
The meanings of the other options are as follows:
Question : Which of the following is commonly known as quicklime?
Option 1: CaSO4
Option 2: CaCl2
Option 3: Ca(OH)2
Option 4: CaO
Correct Answer: CaO
Solution : The correct answer is CaO.
Calcium oxide (CaO) is commonly known as quicklime. Quicklime is a white, crystalline solid at room temperature and is produced by heating calcium carbonate (CaCO3), typically in the form of limestone, in a process called calcination. The chemical
Question : French Revolution broke out in the year?
Option 1: 1917
Option 2: 1911
Option 3: 1789
Option 4: 1790
Correct Answer: 1789
Solution : The correct answer is 1789.
The French Revolution was a time of profound social and political transformation in France that affected not just that country, but also the entire Europe. The Revolution also brought about the establishment of many modern democratic principles, such as citizenship
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