AIEEE Questions

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let x be the correct answer and y be the wrong answer
so the total number of questions is (x + y) = 150.....(1)
=> 4x - 2y = 420.....(2)
By solving (1) & (2), we get
=> 6x = 720
hence x = 120
Therefore, number of correct answers are 120.

A Coffin.

The rearranged sentences are ::

(D) By now, most know that Google is about far more than search.(C) Gmail, Google maps, and Blogger are used widely.(B) But those apps are just a hint of what this Internet behemoth offers (E) under the hood of its famous search engine.(A) Here’s a rundown of some useful Google gems that (F) you may not know about, but probably should.

In the early 1950s two scientists, Rosalind Franklin and Maurice Wilkins, studied DNA using x-rays. Franklin produced an x-ray photograph that allowed two other researchers, James Watson and Francis Crick to work out the 3D structure of DNA. The structure of DNA was found to be a double helix.

Mercury and Bromine both will be in liquid state at room temperature. But mercury is metal. Hence, bromine is the only non metal which is in liquid state at room temperature.

Manas National Park or Manas Wildlife Sanctuary is a national park, UNESCO Natural World Heritage site in Assam is known for Elephants. It is located in the Himalayan foothills.

Let the two different rates of interests be r1 and r2 respectively.

From the given data,

$$\begin{gathered} 2600 x 4 x r1 - r2100 = 402.80 \\ r1 - r2 = 402.80104 = 3.87 \end{gathered}$$

Hence, the difference in the interest rates = 3.87