The ratio of the prices of three articles X, Y and Z is 8 : 5 : 3. If the prices of X , Y and Z are increased by 25%, 20% and 33 1/3% respectively, then what would be the ratio of the new prices of X, Y and Z?
Two tests had the same maximum mark. The pass percentages in the first and the second test were 40% and 45% respectively. A candidate scored 216 marks in the second test and failed by 36 marks in that test. Find the pass mark in the first test?
In an election between two candidates A and B, the number of valid votes received by A exceeds those received by B by 15% of the total number of votes polleIf 20% of the votes polled were invalid and a total of 8720 votes were polled, then how many valid votes did B get?