Questions

Two circles of radii 17 cm and 8 cm are concentric. The length of a chord of greater circle which touches the smaller circle is

If 3P/7 = 4Q/11, then what is the ratio of P and Q respectively?

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'.
Our office building comprises (1)/ seven floors and a restaurant at the top in an (2)/ area of about eight hundred sq. metres. (3)/ No Error (4)

Common salt (NaCl) is made up of

India shares water border with ___ countries.

Which Five Year Plan adopted Indicative Planning in India?

On 5 March 2017, who launched an artificial intelligence – driven chatbot named ‘EVA (Electronic Virtual Assistant)’ for customer services? 

Who won Nobel prize for Physics in 2015?