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Question : If 16 : $x$ :: $x$ : 196, find the positive value of $x$?
Option 1: 60
Option 2: 62
Option 3: 56
Option 4: 64
Correct Answer: 56
Solution : Given, 16 : $x$ :: $x$ : 196 ⇒ $\frac{16}{x}=\frac{x}{196}$ ⇒ $x^2=16\times196$ ⇒ $x=4\times 14$ ⇒ $x=56$ Hence, the correct answer is 56.
Question : Parts of the given sentence have been given as options. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer. Germs will always find a way to exploit our human environment.
Option 1: No error
Option 2: a way to exploit
Option 3: Germs will always find
Option 4: our human environment
Correct Answer: No error
Solution : The correct choice is the first option.
Explanation: The sentence is grammatically correct, and there's no error in it. The sentence implies the general truth that germs have the ability to find ways to exploit the human environment, suggesting their adaptability and persistence.
Therefore,
Question : At a clearance sale, a shopkeeper gives a 45% discount. If a customer paid INR 330 during the sale, then what is the marked price of that shirt?
Option 1: INR 550
Option 2: INR 600
Option 3: INR 500
Option 4: INR 650
Correct Answer: INR 600
Solution : Selling price = INR 330 Discount = 45% of the marked price Selling price = marked price – discount ⇒ 330 = marked price – 45% of marked price ⇒ 330 = 55% of marked price $\therefore$ Marked price = $\frac{330}{0.55}$ =INR 600 Hence,
Question : Which of the following metals reacts violently with cold water?
Option 1: Magnesium
Option 2: Aluminium
Option 3: Zinc
Option 4: Potassium
Correct Answer: Potassium
Solution : The correct option is potassium.
Potassium (K) reacts violently with cold water. When potassium comes into contact with water, it undergoes a highly exothermic reaction, producing hydrogen gas and forming a solution of potassium hydroxide. This reaction is more pronounced with alkali metals like
Question : A 9 cm solid metallic cube and a solid metallic cuboid having dimensions 5 cm, 13 cm, and 31 cm are melted and recast into a single cube, What is the total surface area (in cm2) of the new cube?
Option 1: 865
Option 2: 1176
Option 3: 1362
Option 4: 2744
Correct Answer: 1176
Solution : Given: Side of cube = 9 cm Cuboid length = 5 cm Breadth = 13 cm Height = 31 cm Volume of cube = $\text{side}^3$ = $9^3$ = 729 cm3 Volume of cuboid = length × breadth × height = 5 × 13 ×
Question : The following pie chart shows the number of students who failed in different subjects in an examination. Examine the chart and answer the following question. The total number of students who have failed is 350.
The number of students who failed in mathematics is less than the number of students who failed in all other subjects by:
Option 1: 190
Option 2: 256
Option 3: 95
Option 4: 161
Correct Answer: 161
Solution : Given: Total students = 350 Students who failed in mathematics = 27% = $\frac{27}{100}\times350$ = 94.5 Remaining students who failed in other subjects = 350 – failed in mathematics = 350 – 94.5 = 255.5 The difference between failing in other subjects and failing in
Question : Which of the following states has the highest literacy rate?
Option 1: Goa
Option 2: Karnataka
Option 3: Mizoram
Option 4: Himachal Pradesh
Correct Answer: Mizoram
Solution : The correct answer is Mizoram.
Mizoram has a literacy rate of 91.58%. Among other states Goa has a literacy rate of 87.4%, Himachal Pradesh of 86.6% and Karnataka of 77.2%.
In India highest literacy rate is of Kerala with 94% literacy and Bihar has the
Question : Who was the last ruler of Lodi Dynasty?
Option 1: Bahlul Lodi
Option 2: Ibrahim Lodi
Option 3: Daulat Khan Lodi
Option 4: Sikandar Lodi
Correct Answer: Ibrahim Lodi
Solution : Correct Answer is Ibrahim Lodi
The third and final monarch of the Lodhi Dynasty was Ibrahim Lodhi. In the First Battle of Panipat in 1526, Babur defeated and killed him. The Lodhi Dynasty came to an end with Ibrahim Lodhi's passing. The 320-year-old Delhi
Question : Who attainded the congress of Oppressed Nationalists at Brussels in 1927, on behalf of the National Congress ?
Option 1: Jawaharlal Nehru.
Option 2: Mahatma Gandhi .
Option 3: Dr. Ansari .
Option 4: Motilal Nehru .
Correct Answer: Jawaharlal Nehru.
Solution : The correct option is Jawaharlal Nehru.
The Congress of Oppressed Nationalities in Brussels in 1927 aimed to bring together representatives from various colonized and oppressed nations to discuss their common struggles against imperialism. One of the notable attendees at this congress was Jawaharlal Nehru,
Question : Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA) is an employment scheme that was launched in 2005 to provide social security by guaranteeing a minimum of ________ days of paid work per year to all families whose adult members opt for unskilled labour-intensive work.
Option 1: 100
Option 2: 150
Option 3: 120
Option 4: 200
Correct Answer: 100
Solution : The correct answer is 100.
The Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA) was introduced to improve livelihood security in rural areas by offering every household whose adult members volunteer to perform unskilled manual labour at least 100 days of guaranteed wage employment
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