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Question : 24 men can do a piece of work in 17 days. How many men will be able to do it in 51 days?
Option 1: 8
Option 2: 10
Option 3: 12
Option 4: 6
Correct Answer: 8
Solution : $M_{1}D_{1}=M_{2}D_{2},$ where $M =$ Number of people doing the work and $D =$ Number of days taken to do the work. So, $24 \times 17=M_{2} \times 51$ $⇒M_{2} =\frac{24 \times 17}{51} = 8$ men Hence, the correct answer is 8.
Question : ______ states that for a solution of volatile liquids, the partial vapour pressure of each component of the solution is directly proportional to its mole fraction present in solution.
Option 1: Dalton’s law
Option 2: Raoult’s law
Option 3: Faraday’s law
Option 4: Boyle’s law
Correct Answer: Raoult’s law
Solution : The correct answer is Raoult’s law.
Raoult's Law states that for a solution of volatile liquids, the partial vapour pressure of each component of the solution is directly proportional to its mole fraction present in the solution. This law applies to ideal solutions, where
Question : If $\frac{3}{(x+2)(2x+1)}=\frac{a}{2x+1}+\frac{b}{x+2}$ is an identity, the value of $b$ is:
Option 1: 0
Option 2: –1
Option 3: 2
Option 4: 3
Correct Answer: –1
Solution : Given: $\frac{3}{(x+2)(2x+1)}=\frac{a}{2x+1}+\frac{b}{x+2}$ $⇒\frac{3}{(x+2)(2x+1)}=\frac{a(x+2)+b(2x+1)}{(2x+1)(x+2)}$ $⇒3=a(x+2)+b(2x+1)$ To eliminate the term '$a$' we have to put $x = -2$, $⇒3=a(–2+2)+b(2×(–2)+1)$ $⇒3=–3b$ $⇒b=–1$ Hence, the correct answer is –1.
Question : Who prepares the topographical maps of India ?
Option 1: Geological Survey of India
Option 2: Survey of India
Option 3: Defence Ministry
Option 4: Geographical Survey of India
Correct Answer: Survey of India
Solution : The correct option is Survey of India.
The Survey of India, the nation's official mapping organization, creates and publishes the topographical maps of India. To support different governmental and developmental programs, the Survey of India is in charge of undertaking surveys and mapping
Question : Directions: Select the term from the given options that can replace the question mark (?) in the following series based on the English alphabetical order. BPY, ENB, ?, KJH, NHK
Option 1: GLF
Option 2: HLE
Option 3: GMF
Option 4: HMD
Correct Answer: HLE
Solution : Given: BPY, ENB, ?, KJH, NHK
Add 3 to the place value of the first and third letters and subtract 2 from the place value of the second letter to obtain the next term of the series. BPY→B + 3 = E; P – 2
Question : Given below are four jumbled sentences. Select the option that gives their correct order, forming a meaningful and coherent paragraph. A. He had agreed to feed him, pay him twelve rupees a month, and find him somewhere to stay. B. A month's salary was paid in advance. C. Fotik had learned to handle his job quite well in the last five days. D. Upen Babu was a good man, which had helped a lot.
Option 1: ADBC
Option 2: CDAB
Option 3: CBDA
Option 4: DACB
Correct Answer: CDAB
Solution : The second option is the correct answer.
Sentence C seems to be an introductory statement, so it should come first in order. The next sentence is Sentence D, which speaks about Upen Babu, who had helped Fotik a lot. The third sentence should be
Question : Which state government launched the Mission Bhumiputra in August 2022?
Option 1: Nagaland
Option 2: Bihar
Option 3: Sikkim
Option 4: Assam
Correct Answer: Assam
Solution : The correct answer is Assam.
"Mission Bhumiputra" was inaugurated on August 1, 2022, by Dr. Himanta Biswa Sarma, the Chief Minister of Assam. Students will receive digitalised caste certificates as part of the mission in an easy-to-use digital format.
Question : Directions: In a code language, if 265 is written as PNH, 187 is written as OXB, and 248 is written as NUB, then which of the following letters represents the number 4?
Option 1: U
Option 2: N
Option 3: B
Option 4: P
Correct Answer: U
Solution : Given: (I) 265 is written as PNH (II) 187 is written as OXB (III) 248 is written as NUB
On comparing, sentences I and III the number and letters 2 and N are common. On comparing, sentences II and III the number and letters 8
Question : Sita sold a whiteboard marker set at 10% profit. On selling it for Rs. 20 more, she would have earned a profit of 15%. What is the cost price of the whiteboard marker set?
Option 1: Rs. 300
Option 2: Rs. 350
Option 3: Rs. 450
Option 4: Rs. 400
Correct Answer: Rs. 400
Solution : Given: Sita sold a whiteboard marker set at 10% profit. Also, selling price with 15% profit - selling price with 10 % profit = Rs. 20 Let the Cost Price of the whiteboard marker be Rs. $x$. Since, the selling price with 15% profit
Question : In 1932, who discovered the positron, a particle described as "carrying a positive charge but having a mass of the same order of magnitude as that normally possessed by a free negative electron"?
Option 1: Niels Bohr
Option 2: Paul Dirac
Option 3: Ernest Rutherford
Option 4: Carl D. Anderson
Correct Answer: Carl D. Anderson
Solution : The correct answer is Carl D. Anderson.
In 1932, Carl D. Anderson discovered the positron, a particle described as "carrying a positive charge but having a mass of the same order of magnitude as that normally possessed by a free negative electron".
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