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Question : Comprehension: In the following passage, some words have been deleted. Fill in the blanks with the help of the options given. Select the most appropriate option for each number. The air has become very dirty in (1)______ parts of the world. This is of course (2)______ to your health. Experts say many people die (3)______ it each year. There is a new study on (4)______ pollution which comes from the experts of the World Health Organization (WHO) (5)______ is an agency of the United Nations. If you (6)______ unhealthy air for a long period of time, you could (7)______ sick. Air pollution has been linked to many diseases (8)______stroke and cancer. The WHO says that seven million (9)______ die each year as a result of the (10)______ air. Question: Select the most appropriate option to fill in the blank no. 9.
Option 1: human
Option 2: individual
Option 3: people
Option 4: person
Correct Answer: people
Solution : The right choice is the third option.
Explanation: The use of people in the sentence is appropriate because it refers to a collective number of individuals, specifically seven million, as mentioned by the World Health Organization. It conveys the scale of the statistics
Question : Wood's dispatch sent by the Court of Directors of the East India Company in 1854 was related to_____.
Option 1: Famine
Option 2: Military
Option 3: Textiles
Option 4: Education
Correct Answer: Education
Solution : The correct answer is education.
Wood's dispatch is the Magna Carta of English education in India. He supported the use of vernacular languages in primary schools, anglo-vernacular languages in high schools, and English for college students. Sir Charles Wood had a significant role in
Question : A shopkeeper purchased a chair marked at Rs. 600 at two successive discounts of 15% and 20% respectively. He spent Rs. 28 on transportation and sold the chair for Rs. 545. His gain percentage was:
Option 1: 25%
Option 2: 30%
Option 3: 35%
Option 4: 20%
Correct Answer: 25%
Solution : (Single equivalent discount = $(a+b-\frac{a\:×\:b}{100}$)%, where $a$% and $b$% are successive discounts.) Single equivalent discount = $(15+20-\frac{15\:×\:20}{100}$)= 32% After two successive discount cost price = 600 $\times$ 68% = 408 Total cost = 408 + 28 = 436 Selling price = 545 Gain percent =
Question : Directions: Four letter clusters have been given, out of which three are alike in some manner and one is different. Select the odd letter cluster.
Option 1: GCKD
Option 2: UQYR
Option 3: XOTP
Option 4: NJRK
Correct Answer: XOTP
Solution : Let's check each option – First option: GCKD; G – 3 = D; C + 8 = K; The difference between the first and the last letter is equal to 3 and the difference between the middle letters is equal to 8. Second option: UQYR;
Question : Find the total surface area of a cube whose volume is 343 m³.
Option 1: 186 m²
Option 2: 294 m²
Option 3: 196 m²
Option 4: 210 m²
Correct Answer: 294 m²
Solution : Given: Volume of a cube = 343 m³ Let $a$ be the side of the cube. So, $a^3$ = 343 m³ ⇒ $a$ = $\sqrt[3]{343}$ = 7 m Now, the total surface area of a cube = $6a^2$ = $6×7^2$ = 294 m2
Question : Directions: In the following question, find out the odd number from the given alternatives.
Option 1: 484
Option 2: 529
Option 3: 625
Option 4: 566
Correct Answer: 566
Solution : Let's check the given options First option: 484; (22)2 = 484 Second option: 529; (23)2 = 529 Third option: 625; (25)2 = 625 Fourth option: 566; 566 is not a square of any number.
Therefore, 566 is the odd one out as
Question : The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at a speed of 12 km/hr completes one round in 8 minutes, then the area of the park is:
Option 1: 1,53,650 sq. metres
Option 2: 1,35,600 sq. metres
Option 3: 1,53,600 sq. metres
Option 4: 1,56,300 sq. metres
Correct Answer: 1,53,600 sq. metres
Solution : Given: The ratio between the length and the breadth of a rectangular park is 3 : 2. Let length be $3x$, breadth be $2x$. A man cycling along the boundary of the park at a speed of 12 km/hr completes one round in
Question : Which article of the Constitution of India deals with the recognition of the right to education as a fundamental right?
Option 1: Article 300A
Option 2: Article 20
Option 3: Article 33
Option 4: Article 21A
Correct Answer: Article 21A
Solution : The correct answer is Article 21A.
The right to education in India is recognised as a fundamental right under Article 21A of the Indian Constitution. This article was inserted by the 86th Amendment Act of 2002 and states that the state shall provide
Question : Directions: In the following question, select the one that is different from the other three alternatives.
Option 1: 166
Option 2: 131
Option 3: 137
Option 4: 163
Correct Answer: 166
Solution : Let's check the options – First option: 166; The number is even. Second option: 131; The number is odd. Third option: 137; The number is odd. Fourth option: 163; The number is odd.
So, the first option differs from the other three options as it
Question : The centroid of an equilateral triangle $ABC$ is $G$ and $AB = 10 \:\operatorname{ cm}$. The length of $AG$ is:
Option 1: $3\frac{1}{3} \:\operatorname{ cm}$
Option 2: $\frac{10}{\sqrt3} \:\operatorname{ cm}$
Option 3: $10\sqrt3 \:\operatorname{ cm}$
Option 4: $\frac{1}{\sqrt3} \:\operatorname{ cm}$
Correct Answer: $\frac{10}{\sqrt3} \:\operatorname{ cm}$
Solution : Given $AB =BC=AC= 10\ \text{cm}$ Let $AD$ be the median and $G$ be the centroid of an equilateral triangle $ABC$. $G$ divides AD in 2 : 1 ratio. $⇒AG=\frac{2}{2+1}×AD$ Also, D divides BC into equal parts. So, $BD=DC=\frac{10}{2}=5\ \text{cm}$ In $\triangle ABD$, from
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