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Question : Steel is used to make a hemispherical bowl that is 0.37 cm thick. The bowl's inner radius is 6 cm. Find the bowl's outside curved surface area (take $\pi=\frac{22}{7}$).
Option 1: 532 cm2
Option 2: 255.0548 cm2
Option 3: 484 cm2
Option 4: 523.4107 cm2
Correct Answer: 255.0548 cm2
Solution : Given: Steel is used to make a hemispherical bowl that is 0.37 cm thick. The bowl's inner radius is 6 cm. According to the formula, ⇒ Outer radius = 6 + 0.37 = 6.37 cm $\therefore$ Curved surface area = 2 × 227
Question : Directions: A piece of paper is folded and punched as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given folded paper is unfolded, it will look like –
Hence, the second option is correct.
Question : If a speed of rotation of the earth increases, the weight of the body
Solution : The correct answer is decreases.
According to centrifugal acceleration formulae, as angular speed increases, the net acceleration due to gravity decreases. As a result, the weight will reduce. Alternatively, as the rotational speed of earth increases, the gravity at equator decreases and as a result the
Question : A can complete one-third of a work in 10 days and B can do $\frac{3}{5}$ th of the same work in 24 days. They worked together for 10 days. The remaining work was completed by C alone in 15 days. In how many days can C alone do $\frac{2}{3}$rd of the same work?
Option 1: 27
Option 2: 24
Option 3: 30
Option 4: 32
Correct Answer: 24
Solution : Time taken by A to do $\frac{1}{3}$rd of a work = 10 days Time taken by A to complete the work = 3 × 10 = 30 days Part of work done by A in a day = $\frac{1}{30}$ Time taken by B to do
Question : Select the most appropriate meaning of the given idiom. Boil the ocean
Option 1: Something very big
Option 2: Something which gets hot gradually
Option 3: Try to do something impossible
Option 4: To make someone very angry
Correct Answer: Try to do something impossible
Solution : The third option is correct.
The most appropriate meaning of the given idiom is try to do something impossible.
When someone says, don't try to boil the ocean, they are advising against attempting something unfeasible or attempting to solve
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
He went to the doctor because he had not been feeling well since several weeks.
(1) He went to the doctor
(2) since several weeks.
(3) because he had not been feeling well
(4) No Error
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 2
Solution : The correct choice is the second option.
Explanation: When expressing a duration of time, the appropriate preposition is for. "Since" is used to pinpoint a specific starting point in time, not to indicate a duration.
Therefore, the correct sentence would be: "He went to
Question : Directions: A paper is folded and cut as shown below. How will it appear when unfolded?
Hence, the fourth option is correct.
Question : Comprehension:
In the following passage, some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
One afternoon, a dozen Arizona State University students (1) ______ to spend the morning cutting cardboard, mping filters, and assembling filters in an effort to (2)___ 125 portable air purifiers for local schools. That (3)_________ morning, staff members at a homeless shelter in Los Angeles were setting (4)______ 20 homemade purifiers of their own, while in Brookline, Massachusetts, another DIY air purifier was whirring quietly in the back of a daycare (5)________ as children played.
Question: Select the most appropriate option to fill in the blank No. 1.
Option 1: plated
Option 2: gathered
Option 3: triggered
Option 4: dismissed
Correct Answer: gathered
Explanation:
The context of the sentence suggests that the Arizona State University students were gathered to work on a project involving cutting cardboard and assembling filters for air purifiers. Gathered implies they came together for a specific purpose
Question : Directions: Sandeep has a brother named Ankur. Sandeep is the son of Kishon. Baljor is Kishon's father. How is Ankur related to Baljor?
Option 1: Grandson
Option 2: Brother
Option 3: Son
Option 4: Grandfather
Correct Answer: Grandson
Solution : First, we need to draw a family tree –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
Now, it can be seen that Sandeep and Ankur are the sons of Kishon, and Baljor is Kishon's father.
So,
Question : Select the most appropriate SYNONYM of the underlined word in the given sentence. Truth can never be concealed from anyone.
Option 1: Separated
Option 2: Borrowed
Option 3: Disguised
Option 4: Snatched
Correct Answer: Disguised
Solution : The correct choice is the third option.
In the given sentence, the word concealed is used to convey the idea that truth cannot be hidden or kept secret from anyone. Among the options, disguised is the most suitable choice, as it implies altering the
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