Questions

If a+1a=1,then the value of a2-a+1a2+a+1 is a≠0

Who invented the mobile phone?

A question and two statements numbered I and II are given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.

A six storey building consisting of an unoccupied ground floor and above ground floor is floor no. 1, so on and topmost floor is no. 5. Different people lives in building viz. I, J, K, l and M.

Who lives on the third floor?

I. K lives on an even numbered floor. I lives immediately above L. J lives immediately above I. M does not live on the topmost floor.

II. L lives on an odd numbered floor. I and J are immediate neighbours of each other. Similarly, K and M are immediate neighbours of each other. K does not live on an odd numbered floor.

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

The farmer said, "I will be feeding the cows hence I will eat my lunch later."

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

She has (1)/ reduced her (2)/ consumption to considerably. (3)/ No error (4)

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

An old friend, may I give you an advice?

A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives.

The quest to find life outside the solar system got a big boost with the discovery of seven Earth-size extra-solar planets, or exoplanets, orbiting a dwarf star about 40 light years away. Unlike earlier discoveries of exoplanets, all seven planets could possibly have liquid water — a key to life as we know it on Earth — with three planets having the greatest chance. This is by far the largest collection of Earth-like planets in the habitable 'Goldilocks' zone of a star — neither too close nor too far from a star, which raises the possibility of liquid water being present on the surface. Only Earth has liquid water in the solar system. Since the dwarf star is much cooler than the Sun, the dimming of light each time a planet passes or transits before the star could be easily recorded from Earth unlike in cases when planets transit a Sun-like bright star. Since the initial discovery of three planets was made using the Chile-based Transiting Planets and Planetesimals Small Telescope, the exoplanet system is called TRAPPIST-1.

The telescope TRAPPIST is in which country?

The ____ architecture maily consists Chaityas, Viharas, Stupas and Stambhas.