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Staff Selection Commission Combined Higher Secondary Level Exam

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Question : Select the most appropriate ANTONYM of the word given in brackets to fill in the blank.

I can’t believe that you’re ________ (resolute) enough to not even decide what you want for dinner.

Option 1: reluctant

Option 2: indecisive

Option 3: disinclined

Option 4: gullible

Team Careers360 27th Jan, 2024

Correct Answer: indecisive


Solution : The correct choice is the second option.

Resolute denotes having or showing great determination. Indecisive denotes not providing a definite and clear result. The word indecisive means the opposite of resolute, i.e., doubtful.

The meanings of the other options are as follows:

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Question : Jaws are absent in:

Option 1: Birfds

Option 2: Fishes

Option 3: Protochordates

Option 4: Reptiles

Team Careers360 26th Jan, 2024

Correct Answer: Protochordates


Solution : The Correct Answer is Protochordates

Protochordata and cyclostomata lack jaws. The invertebrate subphylum of the chordata phylum is referred to as protochordata. It contains creatures like tunicates.  Cyclostomata are a subclass of group agnatha that lack jaws, girdles, and paired appendages.  Hagfish and lampreys are

26 Views

Question : If in a $\triangle ABC$, as drawn in the figure, $AB = AC$ and $\angle ACD = 120^{\circ}$, then angle A is equal to:

Option 1: $50^{\circ}$

Option 2: $60^{\circ}$

Option 3: $70^{\circ}$

Option 4: $80^{\circ}$

Team Careers360 26th Jan, 2024

Correct Answer: $60^{\circ}$


Solution :
Given that $AB = AC$ in $\triangle ABC$.
This is an isosceles triangle, such that $\angle BAC = \angle ABC$.
We have, $\angle ACD = 120^\circ$
$\therefore \angle ACB = 180^\circ - 120^\circ = 60^\circ$
Since the sum of angles in a triangle is $180^\circ$.

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Question : ABCD is a cyclic quadrilateral, AB is the diameter of the circle. If angle $\angle ACD=45^{\circ}$, then what is the value of $\angle BAD$?

Option 1: $90^{\circ}$

Option 2: $45^{\circ}$

Option 3: $135^{\circ}$

Option 4: $35^{\circ}$

Team Careers360 26th Jan, 2024

Correct Answer: $45^{\circ}$


Solution :

Since, an angle subtended by the diameter of a circle at the circumference = $90^{\circ}$
⇒ $\angle$ ACB = $90^{\circ}$
$\angle$ BCD = $\angle$ ACD + $\angle$ ACB = $45^{\circ} + 90^{\circ}=135^{\circ}$
Since the opposite angles of a cyclic quadrilateral are supplementary,
$\angle$ BCD +

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Question : 2nd October is observed as________.

Option 1: International Non-Violence Day

Option 2: World Social Justice Day

Option 3: World Wildlife Day

Option 4: International Education Day

Team Careers360 27th Jan, 2024

Correct Answer: International Non-Violence Day


Solution : The correct answer is International Non-Violence Day.

October 2nd is indeed observed as the International Day of Non-Violence. This date is significant because it marks the birthday of Mahatma Gandhi, the leader of the Indian independence movement against British colonial rule and a

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Question : Direct conversion of solar energy with the use of a photo voltaic cell results in the production of

Option 1: Optical energy

Option 2: Electrical energy

Option 3: Thermal energy

Option 4: Mechanial energy

Team Careers360 26th Jan, 2024

Correct Answer: Electrical energy


Solution : The correct option is electrical energy.

The photovoltaic effect is a mechanism used by photovoltaic cells, also referred to as solar cells, to transform light energy from the sun directly into electrical energy. When photons, the light particles hit a solar cell's surface, their

170 Views

Question : In triangle MNO, AB is parallel NO and MA = 2.5, AN = 7.5, MB = 2.2, find the value of BO.

Option 1: 6.6

Option 2: 8.2

Option 3: 5.4

Option 4: 4.8

Team Careers360 26th Jan, 2024

Correct Answer: 6.6


Solution :
Given:
In triangle MNO, AB is parallel NO and MA = 2.5, AN = 7.5, MB = 2.2
Here, triangles MNO and MAB are similar because angle M in triangle MNO is equal to angle M in triangle MAB.
So, $\frac{MA}{MN}=\frac{MB}{MO}$
⇒ $\frac{2.5}{2.5+7.5}=\frac{2.2}{MO}$
$\therefore MO=8.8$

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