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Staff Selection Commission Sub Inspector Exam

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Question : Ramu had to select a list of numbers between 1 and 1000 (including both), which are divisible by both 2 and 7. How many such numbers are there?

Option 1: 142

Option 2: 71

Option 3: 97

Option 4: 642

Team Careers360 25th Jan, 2024

Correct Answer: 71


Solution : The numbers that are divisible by both 2 and 7 = 2 × 7 = 14
The smallest number divisible by 14 = 14
The largest number divisible by 14 = 994 (nearest to 1000)
Let the required number be $n$.
Now, $a_n=a+(n-1)d$, where $a_n$

359 Views

Question : What is the LCM of 0.15, 0.18, and 0.45?

Option 1: 0.9

Option 2: 0.09

Option 3: 0.81

Option 4: 0.6

Team Careers360 21st Jan, 2024

Correct Answer: 0.9


Solution : $0.15 = \frac{15}{100}$
$0.18 =\frac{18}{100}$
$0.45 =\frac{45}{100}$
We know, LCM of fractions = $\frac{\text{LCM of numerators}}{\text{HCF of denominators}}$
So, LCM of $ \frac{15}{100}, \frac{18}{100}$, and $\frac{45}{100}=\frac{90}{100}=0.9$
Hence the correct answer is 0.9.

13 Views

Question : Select the most appropriate meaning of the given idiom.

All ears.

Option 1: To scold someone bitterly.

Option 2: To listening attentively.

Option 3: To listen to everyone.

Option 4: To not be vocal.

Team Careers360 19th Jan, 2024

Correct Answer: To listening attentively.


Solution : The correct choice is the second option.

Explanation:

The idiom all ears is commonly used to convey the idea of someone being fully attentive and eager to listen. It doesn't have a literal meaning but rather a figurative one, suggesting that someone

6 Views

Question : World Trade Organization (WTO) was started in the year:

Option 1: 1984

Option 2: 1994

Option 3: 1995

Option 4: 1996

Team Careers360 20th Jan, 2024

Correct Answer: 1995


Solution : The correct option is 1995.

The World Trade Organisation began operations on January 1st, 1995. It is in charge of regulating global trade and helps its 164 members negotiate trade deals. The organization also functions as a forum for resolving trade disputes between nations,

29 Views

Question : The value of $\frac{4.669 \times 4.669–9 \times(0.777)^2}{(4.669)^2+(2.331)^2+14(0.667)(2.331)}$ is $(1-k)$, where $k = $?

Option 1: 0.666

Option 2: 0.647

Option 3: 0.467

Option 4: 0.768

Team Careers360 19th Jan, 2024

Correct Answer: 0.666


Solution : Given: The expression is $\frac{4.669 \times 4.669–9 \times(0.777)^2}{(4.669)^2+(2.331)^2+14(0.667)(2.331)}=(1 - k)$
Use the algebraic identities, $(a+b)^2=a^2+b^2+2ab$ and $a^2-b^2=(a+b)(a-b)$
⇒ $\frac{4669 \times 4669–9 \times(777)^2}{(4669)^2+(2331)^2+14(0667)(2331)}=(1 - k)$
⇒ $\frac{(4669)^2–(2331)^2}{(4669)^2+(2331)^2+2(4669)(2331)}=(1 - k)$
⇒ $\frac{(4669)^2–(2331)^2}{(4669+2331)^2}=(1 - k)$
⇒ $\frac{(4669–2331)(4669+2331)}{(4669+2331)^2}=(1 - k)$
⇒ $\frac{(4669–2331)}{(4669+2331)}=(1 - k)$
⇒ $\frac{2338}{7000}=(1 - k)$
⇒

13 Views

Question : If $\cos A + \cos B + \cos C = 3$, then what is the value of $\sin A + \sin B + \sin C$?

Option 1: $1$

Option 2: $2$

Option 3: $0$

Option 4: $-1$

Team Careers360 22nd Jan, 2024

Correct Answer: $0$


Solution : The equation $\cos A + \cos B + \cos C = 3$ holds when $A = B = C = 0°$ because the maximum value of $\cos \theta$ is $1$. 
Since $\sin 0° = 0$, the value of $\sin A + \sin B + \sin

28 Views

Question : Directions: Select the Venn diagram that best illustrates the relationship between the following classes.
Europe, United Kingdom, London

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 25th Jan, 2024

Correct Answer:


Solution : London is the capital of the United Kingdom and is a country in Northwestern Europe. Therefore, the circle of London lies inside the circle of the United Kingdom and the circle of the United Kingdom lies inside the circle of Europe.
The Venn diagram is as

8 Views

Question : Directions: Select the figure from among the given options that can replace the question mark (?) in the following series.

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 23rd Jan, 2024

Correct Answer:


Solution : According to the given figures –
1. The elements inside the box are interchanging their positions with the opposite elements.
2. The elements on the right side and the bottom of the box are interchanged alternately with the new elements.
The required figure is as follows

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