Rajan is ranked 11th in the list of successful boys in a class and at 31st from the bottom. Three boys did not take the exam at all and one failed. How many students are there in the class?

A man is 3 years older than his wife and four times as old as his son. If the son becomes 15 years old after 3 years, what is the present age of the wife? 

(DIRECTIONS 19): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Indian airlines had no positive response to the incident occurred in the failure of aeroplane engine.It was 1989 ,Indian airline B059 got crashed in the middle of the Indian ocean,205 passengers were died.There were no clues about the B059 , some says that it got crashed but some said it got lost.Passengers relative were worried about their dear ones. Government decleared the issue of B059 as a priority,Indian navy were given responsibility to find the B059 but nothing was found .After a year some fishermen found the black box of B059, which confirms about the crash of Indian aeroplane B059 due to engine failure.
What could be assumed from the passage?

Directions: In each of the following questions four words are given of which two words are most nearly the same or opposite in meaning. Find the two words which are most nearly the same or opposite in meaning and indicate the number of the correct letter combination as answer. 

(A) unite
(B) association
(C) separate
(D) distant 

Recently, ICC has hosted T20 World Cup 2021 to which country?

Which bank has launched the first contactless debit, credit and multi-currency forex card?