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Question : Ankit went to Manali, for river rafting. He rows at the rate of 12 km/h in still water. To cover the same distance, it takes him twice as long to row up as to row down the river. Find the rate of flow of the river.
Option 1: 6 km/h
Option 2: 4 km/h
Option 3: 8 km/h
Option 4: 2 km/h
Correct Answer: 4 km/h
Solution : Let the rate of flow of water of the river be $x$. Speed of boat in still water = 12 km/h Let the distance be $y$ km. According to the question, $\frac{y}{12-x}=2 × \frac{y}{12+x}$ ⇒ $12+x=24-2x$ ⇒ $3x=12$ ⇒ $x=4$ Hence, the correct answer
Question : Direction: In the following question, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is No error.
Sometimes (1) / I get angry (2) / on her. (3) / No error. (4)
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 3
Solution : The error lies in the third part of the sentence.
In third part, the preposition "on" should be replaced with "with" to correctly convey the idea that the speaker gets angry with the person mentioned (in this case, "her"). Using "with" is the more appropriate
Question : The given table shows the number of new employees who joined different categories of employees in an organization and also the number of employees from these categories who left the organization every year since the foundation of the organization in 2015. Study the table and answer the question that follows.
During the years given, what is the difference between the total number of Business Analysts who joined the organization and the total number of Sales Representatives who joined the organization?
Option 1: 141
Option 2: 140
Option 3: 142
Option 4: 143
Correct Answer: 140
Solution : The total number of Business Analysts who joined the organization = 80 + 63 + 78 + 42 + 67 = 330 The total number of Sales Representatives who joined the organization = 50 + 46 + 38 + 34 + 22 = 190 Required
Question : If the word PHOTOGRAPH is spelt with 'F' in place of 'PH', then what would be the percentage reduction in the number of letters?
Option 1: 20%
Option 2: 18%
Option 3: 10%
Option 4: 25%
Correct Answer: 20%
Solution : Total word in PHOTOGRAPH is = 10 When PH is replaced by F, the total word in FOTOGRAF = 8 Required percentage = $\frac{10 - 8}{10} \times 100= 20\%$ Hence, the correct answer is 20%.
Question : Select the option that expresses the given sentence in passive voice. What did you do to help the migrant labourers during the pandemic?
Option 1: What is done by you to help the migrant labourers during the pandemic?
Option 2: What was being done by you to help the migrant labourers during the pandemic?
Option 3: What was done by you to help the migrant labourers during the pandemic?
Option 4: What has been done by you to help the migrant labourers during the pandemic?
Correct Answer: What was done by you to help the migrant labourers during the pandemic?
Solution : The third option is the correct answer.
Passive voice is the voice in which the object experiences an action rather than the person who performs the action. Hence, the object in the active
Question : Directions: In the following bar diagrams sales of books (in thousand numbers) from six branches B1, B2, B3, B4, B5 and B6 of a publishing company in 2009 and 2010 have been shown. Study the graph and answer the questions.
$x$% of the average sales of branches B1, B2, and B3 in 2010 is the average sales of branches B1, B3, and B6 in 2009. The value of $x$ is:
Option 1: 77.5%
Option 2: 87.5%
Option 3: 82.5%
Option 4: 75%
Correct Answer: 87.5%
Solution : From the given graph, The total sales of branches B1, B2, and B3 in 2010 = 105 + 65 + 110 = 280 thousand The total sales of branches B1, B3, and B6 in 2009 = 80 + 95 + 70 = 245 thousand The
Question : A large solid cube is melted and cast into ' N ' small solid spheres, each of radius 3 cm, and ' N + 2 ' small solid cuboids, each of dimensions 4 cm × 4 cm × 6.5 cm. If the length of each side of the large solid cube is 12 cm, then find the value of 'N'. [Use $\left.\pi=\frac{22}{7}\right]$
Option 1: 8
Option 2: 5
Option 3: 7
Option 4: 6
Correct Answer: 7
Solution : According to the question, Volume of cube = volume of N-solid spheres + Volume of (N + 2) small cuboids ⇒ $12 \times 12 \times 12 =[ N \times \frac{4}{3}\times\pi\times 3^3] + [(N + 2)(4 \times 4 \times 6.5)]$ ⇒ $1728 = 36N\pi + 104N
Question : Which of the following bases is found in lime water?
Option 1: Calcium hydroxide
Option 2: Potassium hydroxide
Option 3: Magnesium hydroxide
Option 4: Ammonium hydroxide
Correct Answer: Calcium hydroxide
Solution : The correct answer is Calcium hydroxide.
Lime water contains calcium hydroxide, which is a strong base. The chemical formula for calcium hydroxide is Ca(OH)2. When calcium oxide (quicklime) reacts with water, it forms calcium hydroxide, resulting in lime water. The hydroxide
Question : Which of the following pair of compound – general formula is correct? I. Alkenes – CnH2n II. Alkanes – CnH2n-1
Option 1: Only II
Option 2: Only I
Option 3: Neither I nor II
Option 4: Both I and II
Correct Answer: Only I
Solution : The correct answer is Only I
Alkenes are hydrocarbons with at least one carbon-carbon double bond, whether they are branched or unbranched. There is at least one carbon-to-carbon double bond in every alkene. CnH2n is the general formula for alkenes. A family of compounds
Question : Which of the following are members of 15 naturally occurring metallic chemical elements whose atomic numbers are between 57 and 71?
Option 1: Alkali metals
Option 2: Lanthanides
Option 3: Halogens
Option 4: Actinides
Correct Answer: Lanthanides
Solution : The correct answer is Lanthanides.
Lanthanides are a series of 15 metallic elements from lanthanum to lutetium in the periodic table, and their atomic number ranges from 57 to 71. The modern periodic table consists of 118 elements arranged in 18 groups and seven periods.
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