How to Speak English like natives (part three) #shorts

The numbers of students speaking English and Hindi are in the ratio of 4:5. If the number of students speaking English increased by 35% and that speaking Hindi increased by 20% , what would be the new respective ratio?

In a group of 500 people, 350 speak Hindi and 300 speak English. It is given that each person speaks at least one language. (i) How many people can speak both Hindi and English? (ii) How many people can speak Hindi only? (iii) How many people can speak English only?

There are 40 presons in a group : four of them can speak neither Englis nor Hindi .The sum of the number of persons who can speak English and that of those who can speak Hindi is 44 Find the number of those who can speak both English and Hindi.

With reference to the treaties made by the English with native rulers of India in the 18th century, which one of the following pairs is NOT correctly matched ?

(i) In a group of 50 people , 35 speak Hindi , 25 speak both English and Hindi and all people speak atleast one of the two languages . How may people speak only English and not Hindi ? How many people speak English? (ii) In a group of people , 50 speak both English and Hindi and 30 people speak English but not Hindi All the people speak at least one of the two languages . How many people speak English ?