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Staff Selection Commission Sub Inspector Exam

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Question : Directions: Select the option in which the given figure is embedded (rotation is NOT allowed).

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 6th Jan, 2024

Correct Answer:


Solution : Since there is a restriction on the rotation of the figure, we will check where the question figure can exactly fit itself in the given option figures.
By comparison of all the option figures, the given question figure is embedded only in the fourth option figure.

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Question : If $\frac{2}{3}$ of A = 75% of B = 0.6 of C, then $A:B:C$ is:

Option 1: $2:3:3$

Option 2: $3:4:5$

Option 3: $4:5:6$

Option 4: $9:8:10$

Team Careers360 11th Jan, 2024

Correct Answer: $9:8:10$


Solution : Given: $\frac{2}{3}$ of A = 75% of B = 0.6 of C
Here, $\frac{2}{3}$ of A = 75% of B
⇒ $\frac{2A}{3}=\frac{75B}{100}$
⇒ $\frac{A}{B}=\frac{9}{8}$
Let A and B be 9 and 8 respectively.
Now, 75% of B = 0.6 of C
⇒ $\frac{75B}{100}=\frac{6C}{10}$
⇒ $\frac{B}{C}

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Question : $\triangle$ PQR circumscribes a circle with centre O and radius r cm such that $\angle$ PQR = $90^{\circ}$. If PQ = 3 cm, QR = 4 cm, then the value of r is:

Option 1: 2

Option 2: 1.5

Option 3: 2.5

Option 4: 1

Team Careers360 6th Jan, 2024

Correct Answer: 1


Solution :
PQ = 3 cm, QR = 4 cm
OB = OA = OC = r
Since tangents drawn from a point to the circle are equal,
AQ = QB = $r$
⇒ PA = PC = $3-r$
⇒ RC = RB = $4-r$
By Pythagoras

19 Views

Question : Which of the following is a genetic disease?

Option 1: Down syndrome

Option 2: Elephantiasis

Option 3: Asthma

Option 4: Night blindness

Team Careers360 24th Jan, 2024

Correct Answer: Down syndrome


Solution : The correct option is Down syndrome.

Down syndrome is a genetic disease caused by an extra copy of chromosome 21, which results in developmental, and cognitive impairments, unusual physical traits, and an elevated risk for certain health problems.

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Question :

With which one of the following Jacobson’s organ is related?

Option 1:

Vision

Option 2:

Chewing

Option 3: Smelling

Option 4: Hearing

Team Careers360 22nd Jan, 2024

Correct Answer: Smelling


Solution : The correct option is Smelling.

The vomeronasal organs, also known as Jacobson's organs, are connected to the sense of smell but also detect chemical messages called pheromones. They detect pheromones, which are chemical signals generated by members of the same species to communicate information

23 Views

Question : Which of the following seas has the highest salinity?

Option 1: Red Sea

Option 2: Black Sea

Option 3: Dead Sea

Option 4: Arabian Sea

Team Careers360 6th Jan, 2024

Correct Answer: Dead Sea


Solution : The correct answer is the Dead Sea.

Fresh water has a salinity of 0-5 parts per thousand (ppt), brackish water has 5-35 ppt, and ocean water has a salinity greater than 35 ppt. The Dead Sea has a salinity of 340 ppt and is

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