Let the total number of students in the class be ‘n’

Trump’s rank is 16. This means that he scored more than (n-16) students of the class.

So we get,

(n-16)/n=75/100

Or, 100n-1600=75n

Or, 25n=1600

Or, n=64

Thus the strength of the class is 64.

Hence, option C is the correct answer.

Physics and Ecology are taught on Tuesday and Wednesday respectively. Hindi is taught immediately after Ecology and immediately before English. Biology is taught after English.

so, chemistry is taught on Monday.

Hence, option B is the correct answer.

as shown in figure

Hence, option A is the correct answer.

Sharp, Strong, Thin, Fragile, Creative.

Thus, fragile woman is sitting at second place from right.

Hence, option D is the correct answer.

F>B>E>A>D>C

Thus, C is the least sweet fruit.

Hence, option D is the correct answer.

M L K J I H G F E D C B A N O P Q R S T U V W X Y Z

Thus, 17^th letter from right side is D.

Hence, option A is the correct answer.

Paresh is 14^th from left and dileep is 16^th from right and when they interchange their position, dileep becomes 21^st from right, means 14^th from left and 21^st from right is the same position

To find the total no of students we add 14 and 21 and subtract 1 from it, which gives us 34

14+21 = 34

Hence, option B is the correct answer.

A.T.Q

G is elder than A and C

So , three positions are fixed

i.e.   G     A     C

Now C is elder than D

So, D will come after C

G    A     C     D

Now, it is given that E is the youngest and F is elder than one friend only

So, the situation now is

G    A     C      D     F     E

Now, G is younger than B and also A is third eldest

So, the order in decreasing order of age will be

B    G    A     C      D     F     E

So, B is the eldest

Hence, option B is the correct answer.

Hence, Correct option is A.