Joint Entrance Examination (Main)
Question : Which one of the following is the longest river in the world ?
Option 1: Amazon
Option 2: Yangtze-Kiang
Option 3: Nile
Option 4: Mississipi-Missouri
Correct Answer: Nile
Solution : The correct answer is Nile.
Nile is the longest river in the world. It is formed by the confluence of the river Blue Nile and White Nile. It originates from Burundi in Africa and drains into Mediterranean Sea. It has a length of about 6656
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Question : If $\sec A=\frac{17}{15}$, then what is the value of $\cot A$?
Option 1: $\frac{15}{21}$
Option 2: $\frac{15}{7}$
Option 3: $\frac{8}{15}$
Option 4: $\frac{15}{8}$
Correct Answer: $\frac{15}{8}$
Solution : Given: $\sec A=\frac{17}{15}$ $⇒\cos A = \frac{15}{17}$ $⇒\sin A = \sqrt{1-\cos^2 A}= \sqrt{1-(\frac{15}{17})^2}$ = $\sqrt{\frac{64}{289}}$ = $\frac{8}{17}$ $\therefore \cot A = \frac{\cos A}{\sin A} = \frac{\frac{15}{17}}{\frac{8}{17}} = \frac{15}{8}$ Hence, the correct answer is $\frac{15}{8}$.
Question : Ali, Avtar Singh, and Ashok working together can finish a work in 8 days. Ali alone can do it in 20 days and Avtar Singh alone can do it in 24 days. In how many days can Ashok alone do the same work?
Option 1: 30
Option 2: 28
Option 3: 26
Option 4: 25
Correct Answer: 30
Solution : Let the total work be 1 unit. Ali can finish the work in 20 days. Ali's work rate = $\frac{1}{20}$ units per day. Avtar Singh can finish the work in 24 days. Avtar Singh's work rate = $\frac{1}{24}$ units per day. Ali, Avtar Singh, and
Question : Silver gets corroded due to_________in air.
Option 1: oxygen
Option 2: Hydrogen sulphide
Option 3: Carbon dioxide
Option 4: Nitrogen
Correct Answer: Hydrogen sulphide
Solution : The correct option is Hydrogen sulphide.
Silver can corrode due to the airborne hydrogen sulphide (H2S) content. Silver sulphide (Ag2S) is the main component of the black tarnish that results from exposure to Hydrogen sulphide on silver. This tarnish coating
Question : Assertion: A functional organizational structure enhances specialized expertise.
Reason: It groups employees based on their geographical locations.
Option 1: Both assertion and reason are true, and the reason is the correct explanation of the assertion.
Option 2: Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
Option 3: Assertion is true, but the reason is false.
Option 4: Assertion is false, but the reason is true.
Correct Answer: Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
Solution : The correct answer is (b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
The assertion is true. A functional organizational
Question : Where do plants synthesise protein from?
Option 1: Fatty acids
Option 2: Sugar
Option 3: Amino acids
Option 4: Starch
Correct Answer: Amino acids
Solution : The correct option is Amino acids.
Plants produce proteins from amino acids, the building blocks of proteins. Plants capture solar energy and transform it into chemical energy, which is then used to power numerous cellular processes such as amino acid synthesis. These amino acids
Your percentile will be around: 70.26. And your overall rank will be in the range of 317130 - 356500.
Talking about your chances to get a seat in NITs, IIITs, will be tough.
Still you do have another chance to score better so that you will be having good chance
Question : Directions: In the following question, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. 16, 30, ?, 79, 114
Option 1: 45
Option 2: 49
Option 3: 63
Option 4: 51
Correct Answer: 51
Solution : Given: 16, 30, ?, 79, 114
Add the consecutive multiples of 7 in the previous term to obtain the next term of the series. 16 + (7 × 2) = 16 + 14 = 30 30 + (7 × 3) = 30 + 21 =
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