The diameters of two cones are equal. If their slant heights are in the ratio 5: 2, then the ratio of curved surface areas of the cones is _________ .

Read the following passage carefully and answer the questions given below it.
If the census tells us that India has two or three hundred languages, it also tells us, I believe, that Germany has about fifty or sixty languages. I do not remember anyone pointing out this fact in proof of the disunity or disparity of Germany. As a matter of fact, a census mentions all manner of petty languages, sometimes spoken by a few thousand persons only; and often dialects are classed for scientific purposes as different languages. India seems to me to have surprisingly few languages, considering its area. Compared to the same area in Europe, it is far more closely allied in regard to language, but because of widespread illiteracy, common standards have not developed and dialects have formed. The principal languages of India are Hindustani (of the two varieties, Hindi and Urdu), Bengali, Gujarati, Marathi, Tamil, Telugu, Malayalam and Kannada. If Assamese, Oriya, Sindhi, Kashmiri, Pushtu and Punjabi are added, the whole country is covered except for some hill and forest tribes. Of these, the Indo-Aryan languages, which cover the whole north, centre and west of India, are closely allied; and the southern Dravidian languages, though different, have been greatly influenced by Sanskrit, and are full of Sanskrit words. 

Which of the following is not true in reference to the passage? 

Which one of the following schedules of the Constitution of India is to be amended to create a new state?

The World Bank approved how much fund for MSMEs Emergency Response Program to support severely impacted MSMEs in India due to COVID-19 crisis?

The operation carried out by the British ruler to arrest the leaders of the Quit India Movement was

Inflation in India is measured on which of the following index?

Eastern basin is not a part of plain?

What value will come in place of question mark (?) in the following questions?

(?)² + 1 = 212 + 172