Exams

A mixture contains acid and water in the ratio of 7 : 3. If 4 litres of water is added to it, then the ratio of acid and water becomes 7 : 4. What is the quantity (in litres) of acid in the mixture?

What is the duration of the world’s shortest X–ray laser has been successfully created by the scientists?

The pie chart shows the annual car production (in millions) of six countries (A,B,C,D,E,F). Study the diagram and answer the following questions.

If 35% of the cars produced by these six countries are diesel and the rest are petrol, then how many petrol cars were produced (in millions)?

Possible length of the three sides of a triangle are :­

In each of the following questions, a part of the figure is missing. Find out from the given options (a), (b), (c) or (d), the right figure to fit in the missing figure (X).

Jahangir (1605–1627 AD) was the ruler of which dynasty?

Find out the odd word/letters/number/number pair from the given alternatives.

Who among the following is the vice-chairman of NITI Aayog as of 2018?