Study the following information carefully and answer the questions.
K$D means D is the father of K.
K
K>D means D is the daughter of K.
K@D means D is the son of K.
In the expression H>R$S@T>N, how H is related to N?
The average marks of eight students in the Mathematics exam are 75. If the highest and lowest marks are removed, then the average marks become 80. If the ratio of the highest marks to the lowest marks is 3 : 1, then the highest marks are what percentage of the sum of the all the marks obtained by the eight students in the Mathematics exam?
The sequence of folding a piece of paper and the manner in which the folded paper has been cut is shown in the following figures. How would this paper look when unfolded?