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Question : If $x(x+y+z)=20$, $y(x+y+z)=30$, and $z(x+y+z)=50$, then the value of $2(x+y+z)$ is:
Option 1: 20
Option 2: –10
Option 3: 15
Option 4: 18
Correct Answer: 20
Solution : Given: $x(x+y+z)=20$, $y(x+y+z)=30$, and $z(x+y+z)=50$ Adding all the equations, ⇒ $x(x+y+z) + y(x+y+z) + z(x+y+z) = 20+30+50$ ⇒ $(x+y+z)^{2} = 100$ ⇒ $(x+y+z) = 10$ Thus, $2(x+y+z) = 20$ Hence, the correct answer is 20.
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
Why should we (bothered)?
(1) bother
(2) bothering
(3) to bother
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The first option is the correct choice.
The verb "bother" needs to be in its base form, as modals are followed by the base form of the verb. Here, the modal should be followed by the base form "bother". The question is asking for the
Question : The very first cricket test match was played on:
Option 1: 15 March 1977
Option 2: 15 March 1900
Option 3: 15 March 1880
Option 4: 15 March 1877
Correct Answer: 15 March 1877
Solution : The correct answer is 15 March 1877.
On 15 March 1877, England and Australia played the very first cricket test match during England's tour of Australia. The match was a hit and sparked a popular demand for more matches or series between the
Question : The cells which are closely associated and interacting with guard cells are
Option 1: Transfusion tissue
Option 2: Complementary cells
Option 3: Subsidiary cells
Option 4: Hypodermal cells
Correct Answer: Subsidiary cells
Solution : The correct option is Subsidiary cells.
Subsidiary cells are specialised plant cells that interact with guard cells, most especially in the stomatal complexes. A stomatal complex is made up of two guard cells bordered by one or more subsidiary cells. The subsidiary cells perform
Question : Comprehension:
In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
Do you live in a house? You might be (1)_________to learn that there are many, many kinds of (2)_______. Most people in the United States are used to living in houses made of wood or bricks. But many people around the world live in houses made of grass, dirt, or cloth.
In the Great Rift Valley of Eritrea, the nomadic people who are in the Atr tribe build their houses of straw. Their houses are shaped like (3)_________-half spheres. The homes are small and cool. The people can move their houses when they want to move. Since the people are (4)___________ they move often. They (5)____________ their animals to new places in order to find food.
Question:
Select the most appropriate option to fill in the blank No. 3.
Option 1: domes
Option 2: pantheon
Option 3: vault
Option 4: stars
Correct Answer: domes
Solution : The most appropriate choice is the first option.
Explanation: Domes are rounded structures that form a half-sphere shape, which fits the description of the houses made by the Atr tribe in the passage.
The meanings of the other options are as follows:
Question : Select the most appropriate synonym of the underlined word in the given sentence.
In order to protect his identity, the spy had to efface all evidence of his true name and occupation from his personal documents.
Option 1: reveal
Option 2: clarify
Option 3: maintain
Option 4: destroy
Correct Answer: destroy
Solution : The fourth option is the correct choice.
Destroy is the most appropriate synonym for efface in this context, as it means to eliminate or erase.
Question : The cooling by desert cooler is based on:
Option 1: hot air replacement
Option 2: air dehydration
Option 3: evaporative cooling
Option 4: air rehydration
Correct Answer: evaporative cooling
Solution : The correct option is evaporative cooling.
The cooling provided by a desert cooler is based on the evaporative cooling principle. This process involves the evaporation of water into the surrounding air, which causes cooling. Desert coolers work well in hot, dry locations where
Question : Select the most appropriate meaning of the given idiom.
On tenterhooks
Option 1: Anxious and tense
Option 2: Happy and joyous
Option 3: Alert and enthusiastic
Option 4: Neutral and undecided
Correct Answer: Anxious and tense
The idiom on tenterhooks is used to describe a state of nervousness or anxiety, often while waiting for something or in anticipation of an uncertain event. If someone is on tenterhooks, he is in a state
Question : Pectin, which is responsible for the firmness and softness of fruits is mainly composed of which acid unit?
Option 1: Aspartic acid
Option 2: D-Galacturonic acid
Option 3: Lactic acid
Option 4: Glutamic acid
Correct Answer: D-Galacturonic acid
Solution : The correct option is D-galacturonic acid.
Pectin, a complex carbohydrate found in the cell walls of plants, is primarily composed of galacturonic acid units. These units are linked together to form a polymer. Pectin is a common ingredient in food processing, especially when producing
Question : Directions: If NASCENT is written as 2734526, how is SENTENCE written in that code?
Option 1: 35265235
Option 2: 35256245
Option 3: 35265245
Option 4: 35256275
Correct Answer: 35265245
Solution : Given: The code for NASCENT is 2734526.
Each letter of the word NASCENT is assigned a code number – N→2; A→7; S→3; C→4; E→5; N→2; T→6 All the letters of SENTENCE are present in the given word NASCENT. So, based on the above-assigned codes
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