ANSWER : 6.93 kg

Explanation :

ANSWER : C

Explanation : A is richer than B, ∴A>B C is richer than A C>A ∴C>A>B D is richer than C D>C ∴D>C>A>B E is the richest of all E>D>C>A>B Hence,'C' will have the central position.

ANSWER : Grand daughter

Explanation : 1.A is B's sister.So,A is girl 2.C is B's mother.So,C is the mother of A also 3.D is C's father and so D is the grand father of A 4.E is D's mother and hence 'A' is the grand daughter of D

ANSWER : 75

Explanation : 25,67,78,43,21,17,49,54,76,92,20,45,86,37,35 Range=Highest value-Lowest value =92-17=75

ANSWER : CRZQWABO

Explanation : H Y D R O G E N 1 3 5 7 9 11 13 15 J C J Z Y S S D In between the letters,H-J,Y-C,D-J,R-Z,O-Y,G-S,E-S,N-D we can find the number of letters as 1,3,5,7,9,11,13 and 15. Similarly,the word 'ANTIMONY' can be written as below. A N T I M O N Y 1 3 5 7 9 11 13 15 C R Z Q W A B O