Newspapers are a constant source of delight and recreation for me. The _____ trouble is that I read _______ many of them.

The ratio of the number of boys and girls who participated in an examination is 4 : 3. The total percentage of candidates who passed the examination is 80 and the percentage of a girls who passed is 90. The percentage of boys who passed is _________.

The missing number in the given sequence 343, 1331, _______, 4913 is

The passengers were angry __________ the airline staff about the delay.